News
Elon Musk says SpaceX making good progress on Starship’s upgraded Raptor 2 engines
As is routine, SpaceX CEO Elon Musk has taken to Twitter to offer a few details about the status of Starship, its Raptor engines, and a few upgrades planned for both.
In mid-December, Musk revealed even more ambitious plans to upgrade Starship by stretching its propellant tanks and adding another three Raptor engines, potentially boosting the ship’s maximum thrust by 50% and substantially improving payload performance. These latest details are focused on an upgraded version of the Raptor engine and on additional changes to Starship’s structural design and assembly process.
According to Musk, as SpaceX continues to ramp up ground testing of the upgraded engine variant, “Raptor 2 now operates routinely at 300 bar main chamber pressure.” For context, on February 10th, 2019, just days after SpaceX began testing the first full-scale Raptor prototype ever completed, the engine briefly reached a main combustion chamber pressure just shy of 269 bar (3900 psi). That narrowly beat records set by Russia’s RD-270 and RD-180 engines, the latter of which is used on ULA’s Atlas V.
It took 18 months before Musk revealed clear proof that at least one Raptor prototype sustained such high chamber pressures over a minute or more of steady-state operations. The same engine peaked at an impressive 330 bar (~4800 psi), briefly producing 225 tons (~500,000 lb) of thrust and soundly beating out Russia’s never flown RD-701 engine, which crested 290-300 bar in testing. Another ~18 months after that milestone, Raptor isn’t quite operational in the sense of supporting orbital-class launches but the engine isn’t far from its first and has since supported dozens of Starship static fires and seven flight tests – five of which occurred in a period of just six months.
Already, despite the fact that Raptor 1 or 1.5 engines have yet to even attempt an orbital-class launch, SpaceX has almost entirely moved on to a new and improved variant known as Raptor 2. According to Musk, all Raptor ground testing at the company’s McGregor, Texas development campus is now focused on the new hardware, which reportedly features much cleaner plumbing and wiring. The biggest change to Raptor 2, though, is an almost 25% increase in maximum nominal thrust over Raptor 1/1.5 – from around 185 to 230 tons (408,000-507,000 lbf). That’s partially enabled by widening the ‘throat’ of Raptor’s nozzle, which sacrifices a small amount of efficiency for more power density. However, Raptor 2 also contains design improvements throughout to enable sustained, reliable operation at chamber pressures up to 300 bar – 10% higher than Raptor 1.5.
On October 24th, Musk subtly live-tweeted one of the first Raptor 2 static fires, revealing that the engine reached a chamber pressure of 321 bar (~4650 psi) and briefly produced around 245 tons (~540,000 lbf) of thrust before destroying itself. Now, a little over two months later, Musk says that Raptor 2 prototypes are routinely operating at 300 bar without major issues, meaning that they can ignite and safely shut down after burning for several minutes at those pressures. In theory, given that 300 bar is Raptor 2’s targeted chamber pressure at max thrust, that means that the engine is now “routinely” operating at the level SpaceX wants and needs to take Starship to the next level.
It’s likely that one or several months of work remain before SpaceX can begin qualifying the first Raptor 2 engines (or, more importantly, hypothetical Raptor 2 Vacuum or Boost variants) for the first Starship or Super Heavy prototypes designed for the new engine. Nonetheless, the rapid progress SpaceX has made in the first few months of Raptor 2 testing is extremely encouraging.
News
Multiple Tesla Cybercab units spotted at Giga Texas crash test facility
The vehicles were covered, but one could easily recognize the Cybercab’s sleek lines and compact size.
It appears that Tesla is ramping up its activities surrounding the development and likely initial production of the Cybercab at Giga Texas. This was, at least, hinted at in a recent drone flyover of the massive electric vehicle production facility in Austin.
Cybercab sightings fuel speculations
As observed by longtime Giga Texas drone operator Joe Tegtmeyer, Tesla had several covered Cybercab units outside the facility’s crash testing facility at the time of his recent flyover. The vehicles were covered, but one could easily recognize the Cybercab’s sleek lines and compact size. Tegtmeyer also observed during his flyover that production of the Model Y Standard seems to be hitting its pace.
The drone operator noted that the seven covered Cybercabs might be older prototypes being decommissioned or new units awaiting crash tests. Either scenario points to a ramp-up in Cybercab activity at Giga Texas, however. “In either case, this is another datapoint indicating production is getting closer to happening,” Tegtmeyer wrote on X, highlighting that the autonomous two-seaters were quite exciting to see.
Cybercab production targets
This latest sighting follows reports of renewed Cybercab appearances at both the Fremont Factory and Giga Texas. A test unit was recently spotted driving on Giga Texas’ South River Road. Another Cybercab, seen at Tesla’s Fremont Factory, appeared to be manually driven, suggesting that the vehicle’s current prototypes may still be produced with temporary steering controls.
The Tesla Cybercab is designed to be the company’s highest-volume vehicle, with CEO Elon Musk estimating that the autonomous two-seater should see an annual production rate of about 2 million units per year. To accomplish this, Tesla will be building the Cybercab using its “Unboxed” process, which should help the vehicle’s production line achieve outputs that are more akin to consumer electronics production lines.
Elon Musk
Teslas in the Boring Co. Vegas Loop are about to get a big change
Elon Musk has a big update for Teslas that operate within the Boring Company’s Vegas Loop.
Tesla vehicles operating in the Boring Company’s Vegas Loop are about to get a big change, CEO Elon Musk said.
In Las Vegas, the Boring Company operates the Vegas Loop, an underground tunnel system that uses Teslas to drop people off at various hotspots on the strip. It’s been active for a few years now and is expanding to other resorts, hotels, and destinations.
Currently, there are stops at three resorts: Westgate, the Encore, and Resorts World. However, there will eventually be “over 100 stations and span over 68 miles of tunnel,” the Vegas Loop website says.
The Loop utilizes Tesla Model 3 and Model Y vehicles to send passengers to their desired destinations. They are currently driven using the Full Self-Driving suite, but they also have safety drivers in each vehicle to ensure safety.
Tesla Cybertruck rides are crucial for Vegas Loop expansion to airport
Tesla and the Boring Company have been working to remove drivers from the vehicles used in the Loop, but now, it appears there is a set timeline to have them out, according to CEO Elon Musk:
The Tesla cars operating in The Boring Company tunnels under Las Vegas will be driverless in a month or two https://t.co/mX4nNrJui9
— Elon Musk (@elonmusk) October 18, 2025
Musk says the Boring Co. will no longer rely on safety drivers within the Teslas for operation. Instead, Tesla will look to remove the safety drivers from the cars within the next month or two, a similar timeline for what Musk believes the Robotaxi platform will look like in Austin.
In Texas, as Robotaxi continues to operate as it has since June, there are still safety monitors within the car who sit in the passenger’s seat. They are there to ensure a safe experience for riders.
When the route takes the vehicle on the highway, safety monitors move into the driver’s seat.
However, Tesla wants to be able to remove safety monitors from its vehicles in Austin by the end of the year, Musk has said recently.
In early September, Musk said that the safety monitors are “just there for the first few months to be extra safe.” He then added that there “should be no safety driver by end of year.”
The safety driver is just there for the first few months to be extra safe.
Should be no safety driver by end of year.
— Elon Musk (@elonmusk) September 4, 2025
Elon Musk
Tesla Full Self-Driving gets an offer to be insured for ‘almost free’
“If @elonmusk is game, we’d be happy to explore insuring Tesla FSD miles for (almost) free.”
Tesla Full Self-Driving just got an insurance offer from Lemonade Co-founder and President Shai Wininger that might be too good to pass up, as he wants to insure vehicles on FSD for “almost free.”
Traditionally, Tesla vehicles are slightly more expensive to insure with traditional companies because of higher repair costs that stem from their technology and state-of-the-art structural battery design.
However, the development of the Full Self-Driving suite by Tesla has certainly pulled some tech entrepreneurs and others to believe the vehicles should be much cheaper to insure.
While there are certainly people on both sides of the spectrum, a handful of notable tech figures believe the data shows that Teslas operating on FSD are safer than human drivers.
Tesla Q2 2025 vehicle safety report proves FSD makes driving almost 10X safer
One of the tech figures who believes that is Shai Wininger, President and Co-founder of Lemonade, an insurance company that has nearly two million customers.
On X, Wininger recently announced the direct integration with Tesla vehicles that would roll out to Lemonade customers. The integration would “remove the need for a UBI device in our Pay Per Mile product. This makes activating Lemonade Car on Teslas effortless and lets us cut hardware and shipping costs, helping lower prices for Tesla drivers even further.”
He said the Tesla API complemented Lemonade’s platform because it provides “richer and more accurate driving behavior data than traditional UBI devices.”
He then proposed an idea to CEO Elon Musk, stating that Lemonade would “be happy to explore insuring Tesla FSD miles for (almost) free.”
If @elonmusk is game, we’d be happy to explore insuring Tesla FSD miles for (almost) free. https://t.co/VDcKX1JzSi
— Shai Wininger (@shai_wininger) October 17, 2025
It would provide Tesla drivers with stable and accurate insurance, while also incentivizing owners to utilize the Full Self-Driving suite for their miles, making the semi-autonomous driving platform extremely cost-effective to use.
Wininger said it would be available in states where Tesla’s in-house insurance program is not available. Tesla Insurance is available in twelve states, and is looking to expand in Florida, as we reported earlier this week. However, it has not expanded to a new state in about three years.
The thought of Lemonade being able to insure FSD miles for almost nothing is an extremely attractive offer from Wininger, and could potentially be a new outlet to make Teslas even less expensive to own and operate throughout their lifetime.
Multiple Tesla Cybercab units spotted at Giga Texas crash test facility
Teslas in the Boring Co. Vegas Loop are about to get a big change
Tesla Full Self-Driving gets an offer to be insured for ‘almost free’
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