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TESLARATI 48 Model S Takes On Thunderhill Raceway

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The Track

Thunderhill is one of the most challenging and unique road racing courses we’ve been to. It’s a technical 3-mile road course with 15 turns, located just over an hour north of Sacramento, CA. The course features unique configurations, with sharp elevation changes, blind turns, off-camber turns, and combinations of the above. What we’ve learned is that in some of these unique turns, normal racing lines do not apply, and you have to know specific ways of taking them. Overall it’s a unique and fun track, which takes a lot of courage to drive.

Thunderhill Track Map

The Tesla Model S

Turn #3, is significantly slanted off-camber, and no turn like this can be found in any other track in California. The Model S has a lot of challenges with off-camber turns in general, and this one in particular, because of the car’s heavy weight.

Turn #5 bypass is sharply downhill and off camber. It’s probably the scariest turn on the whole track. You can’t fully appreciate it from any of the videos or pictures. It’s a blind turn, so you really have to pay attention to flag stations, so you don’t have a collision if there is a car turned around on the other side. Once over the hill, you can’t brake or turn, because the car has very little traction. One or two times we ended up sliding sideways down that hill, while we were learning the track.

Turn #5 section of the track has two configurations, Cyclone or Bypass. Cyclone (in the video below) was really fun, very similar to Laguna Seca’s Corkscrew. The Model S worked the hill really well and felt well under control. Bypass – not so much, because trying to improve here results in the car carrying too much speed for its weight, and you end up sliding downhill off-camber with little control.

Turn #8 is another ‘scary’ turn, but of a different kind since it’s supposed to be taken at full throttle. Easier said than done as you fight your brain’s natural instinct to do the complete opposite. It also leaves zero room for error but can be done with practice.

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We completed 10 sessions over 2 days with the Northern California Racing Club (NCRC) in the Open group. Our top speed was 116mph at then end of the front straight-away, and lateral G forces in 1.0-1.2 range. Our new 20″ 285mm Toyo R888 tires are working out quite nicely, but even they could not stop the car from sliding in off-camber turns. Our best lap time was 2:15 bypass and 2:17 cyclone, with the fastest car in this group at 2:00 and the slowest at 2:29. Overheating and resulting power limiting were present on this track but not significantly more or less than other tracks.

Here’s a video of couple of our laps. Negotiating this tracks well requires more than two days of practice, so please don’t judge too harshly, since it was our first time on this track 🙂 We are looking forward to coming back here in the future to continue improving our skills.

Charging and Power Consumption

Thunderhill ChargersPower consumption was similar to other tracks, at approx 1.2 kW/mile average energy consumption, with approximately 12 rated miles used per lap, and 4 rated miles used per 1 actual mile.

There is a number of 200V 50amp outlets at the track (charging at 24 miles per hour), and the track lets you use them for free. It’s enough to get you through the day, running half of each session.

Corning Supercharger is 35 miles away, so overall, charging situation is covered well at this track.

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Travel

It was the furthest we’ve ever driven to a race track. It was a 600-mile 12 hour trip from San Diego. One of our goals has been to prove that, like gasoline cars, not can we only be on the track on equal footing, but  also drive to and from the track. It’s not been easy in some cases, but on this trip Superchargers made it easy. 2.5 of the 12 hours were spent on charging at 4 SCs (San Juan Capistrano, Tejon Ranch, Harris Ranch, and Manteca), which is not significantly higher than a gasoline car.

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Elon Musk

Tesla isn’t joking about building Optimus at an industrial scale: Here we go

Tesla’s Optimus factory in Texas targets 10 million robots yearly, with 5.2 million square feet under construction.

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Tesla’s Q1 2026 Update Letter, released today, confirms that first generation Optimus production lines are now well underway at its Fremont, California factory, with a pilot line targeting one million robots per year to start. Of bigger note is a shared aerial image of a large piece of land adjacent to Gigafactory Texas, that Tesla has prominently labeled “Optimus factory site preparation.”

Permit documents show Tesla is seeking to add over 5.2 million square feet of new building space to the Giga Texas North Campus by the end of 2026, at an estimated construction investment of $5 billion to $10 billion. The longer term production target for that facility is 10 million Optimus units per year. Giga Texas already sits on 2,500 acres with over 10 million square feet of existing factory floor, and the North Campus expansion is being built to support multiple projects, including the dedicated Optimus factory, the Terafab chip fabrication facility (a joint Tesla/SpaceX/xAI venture), a Cybercab test track, road infrastructure, and supporting facilities.

Credit: TESLA

Texas makes strategic sense beyond the existing infrastructure. The state’s tax structure, lower labor costs relative to California, and the proximity to Tesla’s AI training cluster Cortex 1 and 2, both located at Giga Texas and now totaling over 230,000 H100 equivalent GPUs, means the Optimus software stack and the factory producing the hardware will share the same campus. Tesla’s Q1 report also confirmed completion of the AI5 chip tape out in April, the inference processor designed specifically to power Optimus units in the field.

As Teslarati reported, the Texas facility is intended to house Optimus V4 production at full scale. Musk told the World Economic Forum in January that Tesla plans to sell Optimus to the public by end of 2027 at a price between $20,000 and $30,000, stating, “I think everyone on earth is going to have one and want one.” He has previously pegged long term demand for general purpose humanoid robots at over 20 billion units globally, citing both consumer and industrial use cases.

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Why SpaceX just made a $60 billion bet on AI coding ahead of historic IPO

SpaceX has secured an option to acquire Cursor AI for $60 billion ahead of its historic IPO.

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SpaceX announced today it has struck a deal with AI coding startup Cursor, securing the option to acquire the company outright for $60 billion later this year, while committing $10 billion for joint development work in the interim. The announcement described the partnership as building “the world’s best coding and knowledge work AI,” and comes just days after Cursor was separately reported to be raising $2 billion at a valuation above $50 billion.

The move makes strategic sense given where each company currently stands. Cursor currently pays retail prices to Anthropic and OpenAI to the same companies competing directly against it with Claude Code and Codex. That means every dollar of revenue Cursor earns partially funds its own competition. With SpaceX bringing computational infrastructure to the Cursor platform, that could reduce Cursor’s dependence on OpenAI and Anthropic’s Claude AI as its providers. Access to SpaceX’s Colossus supercomputer, with compute equivalent to one million Nvidia H100 chips, gives Cursor the infrastructure to run and train its own models at a scale it could never afford independently. That one change restructures the entire unit economics of the business.

Elon Musk teases crazy outlook for xAI against its competitors

Cursor’s $2 billion in annualized revenue and enterprise reach across more than half of Fortune 500 companies gives SpaceX something its xAI subsidiary currently lacks, which is a proven, fast-growing software business with real enterprise distribution.

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For Cursor, SpaceX’s $10 billion in joint development funding is transformational. Cursor raised $3.3 billion across all of 2025 to reach that $2 billion in revenue. A single $10 billion commitment from SpaceX, even as a development payment rather than an acquisition, dwarfs everything Cursor has raised in its entire existence. That capital accelerates product development, enterprise sales infrastructure, and proprietary model training simultaneously.

The timing is deliberate. SpaceX filed confidentially with the SEC on April 1, 2026, targeting a June listing at a $1.75 trillion valuation, in what would be the largest public offering in history. The company is expected to begin its roadshow the week of June 8, with Bank of America, Goldman Sachs, JPMorgan, and Morgan Stanley serving as underwriters. Adding Cursor to the portfolio before that roadshow gives IPO investors a concrete enterprise software revenue story to price in, alongside rockets and satellite internet.

The deal also addresses a weakness that became visible after February’s xAI merger. Several xAI co-founders departed following that acquisition, and SpaceX had already hired two Cursor engineers, signaling where its AI talent strategy was heading. Cursor, for its part, faces a pricing disadvantage competing against Anthropic’s Claude Code.

Whether SpaceX exercises the full acquisition option before its IPO or after remains the open question. Either way, this deal reshapes what investors will be buying into when SpaceX goes public.

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Tesla is sending its humanoid Optimus robot to the Boston Marathon

Tesla’s Optimus robot is heading to the Boston Marathon finish line

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Tesla’s Optimus humanoid robot will be stationed at the Tesla showroom at 888 Boylston Street in Boston, right along the final stretch of the Boston Marathon today, ready to cheer on runners and pose for photos with spectators.

According to a Tesla email shared by content creator Sawyer Merritt on X, Optimus will be at the Boston Boylston Street showroom on April 20, coinciding with Marathon Monday weekend. The Boston Marathon finishes on Boylston Street, and the surrounding area draws hundreds of thousands of spectators along with international broadcast coverage. Placing Optimus there puts it in front of a massive public audience at zero advertising cost.

The Tesla showroom is at 888 Boylston Street, between Gloucester Street and Fairfield Street. The final mile of the marathon runs directly along Boylston Street, with runners passing the big stores before reaching the finish line at Copley Square.

Optimus was first announced at Tesla’s AI Day event on August 19, 2021, when Elon Musk presented a vision for a general-purpose robot designed to take on dangerous, repetitive, and unwanted tasks. In March 2026, Optimus appeared at the Appliance and Electronics World Expo in Shanghai, where on-site staff stated that mass production of the robot could begin by the end of 2026. Before that, it showed up at the Tesla Hollywood Diner opening in July 2025 and at a Miami showroom event in December 2025.

Tesla’s well-calculated display of Optimus gives the public a low-pressure first encounter with a robot that Tesla is preparing  to soon deploy at scale. The company has previously indicated plans to manufacture Optimus robots at its Fremont facility at up to 1 million units annually, with an Optimus production line at Gigafactory Texas targeting 10 million units per year.

Tesla showcases Optimus humanoid robot at AWE 2026 in Shanghai

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Musk has said that Optimus “has the potential to be more significant than the vehicle business over time,” and separately that roughly 80 percent of Tesla’s future value will come from the robot program. Whether that holds depends on production execution. For now, Boston gets a preview of what that future looks like, standing at the finish line on Boylston Street while 32,000 runners pass by.

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