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Porsche Taycan wheel and tire size revealed in pre-production prototype sighting

Porsche Taycan winter testing. (Photo: Tye/TaycanForum.com)

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Porsche has stated that one of the Taycan’s primary characteristics will be its capability to be driven hard on the track. In order to do this, the upcoming all-electric four-door would have to be equipped with powerful motors, a well-balanced, hefty battery, and capable, high-performance wheels. It takes some serious rubber, after all, to ensure that the Taycan stays planted on the road when it’s ripping through a closed circuit. 

So far, Porsche has kept the Taycan’s tire size secret. Even the camouflaged prototypes of the vehicle that have been deployed across the globe and spotted in numerous countries have mostly been equipped with unmarked tires. Fortunately, St00k, a moderator at TaycanEVForum.com, was recently able to capture a rare image one of the Taycan’s wheels that just happens to be marked.  

What the TaycanEVForum.com moderator found was quite surprising. Looking at the Taycan prototypes that are being tested across the globe, it is easy to see that the all-electric vehicle is equipped with massive, wide tires.

The Porsche Taycan’s tires. (Photo: St00k/TaycanForum.com)

As could be seen in the recently-shared photo, the Taycan prototype was equipped with 305/30/ZR21 Goodyear Eagle tires. That’s incredibly wide for a four-door sedan that’s the size of the Taycan, especially considering that the larger Tesla Model S P100D (now dubbed as the Model S Performance), only comes with 265/35/21 rear tires. 

These large, wide tires hint at serious track performance for the Taycan. Large wheels such as 305/30/ZR21s, after all, provide exceptional handling for the upcoming all-electric car. This is particularly important for the Taycan, considering that one of its key selling points is its capability to be driven hard for extended periods of time without losing power.

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So far, the Tesla Model 3 Performance is the benchmark when it comes to electric four-door sedans that can handle track driving, thanks to its dedicated Track Mode. With this in mind, Porsche would have to dig deep to make sure that the Taycan, which is significantly more expensive than the Model 3 Performance, will feature closed circuit driving capabilities that justify its Model S-level price. 

While the Taycan’s 305/30/ZR21 tires confirm that the vehicle will be a monster around the track, the large tires also bring up some concerns about the vehicle’s range and efficiency. Larger, wider tires usually give optimum performance at the cost of range. This could be seen in the Model S, as a pre-“Raven” 100D equipped with 245/45/19 tires was listed with more range than a P100D fitted with 265/35/21 tires. 

Hopefully, Porsche could balance the Taycan’s performance with its range well. This would allow the highly-anticipated vehicle to avoid the pitfalls of other premium EVs from European automakers such as Audi and Jaguar, both of whom have released otherwise great electric cars that are, unfortunately, the zero-emissions equivalent of gas-guzzlers.

Watch a preview of the Porsche Taycan’s track capabilities in the video below.

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Simon is an experienced automotive reporter with a passion for electric cars and clean energy. Fascinated by the world envisioned by Elon Musk, he hopes to make it to Mars (at least as a tourist) someday. For stories or tips--or even to just say a simple hello--send a message to his email, simon@teslarati.com or his handle on X, @ResidentSponge.

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Tesla exec: Preparations underway but no firm timeline yet for FSD rollout in China

The information was related by Tesla China Vice President Grace Tao in a comment to local media.

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Credit: Grok Imagine

Tesla has not set a specific launch date for Full Self-Driving in China, despite the company’s ongoing preparations for a local FSD rollout. 

The information was related by Tesla China Vice President Grace Tao in a comment to local media.

Tesla China prepares FSD infrastructure

Speaking in a recent media interview, the executive confirmed that Tesla has established a local training center in China to support the full adaptation of FSD to domestic driving conditions, as noted in a report from Sina News. However, she also noted that the company does not have a specific date when FSD will officially roll out in China.

“We have set up a local training center in China specifically to handle this adaptation,” Tao said. “Once officially released, it will demonstrate a level of performance that is no less than, and may even surpass, that of local drivers.”

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Tao also emphasized the rapid accumulation of data by Tesla’s FSD system, with the executive highlighting that Full Self-Driving has now accumulated more than 7.5 billion miles of real-world driving data worldwide.

Possible 2026 rollout

The Tesla executive’s comments come amidst Elon Musk’s previous comments suggesting that regulatory approval in China could arrive sometime this 2026. During Tesla’s annual shareholder meeting in November 2025, Musk clarified that FSD had only received “partial approval” in China, though full authorization could potentially arrive around February or March 2026.

Musk reiterated that timeline at the World Economic Forum in Davos, when he stated that FSD approval in China could come as early as February.

Tesla’s latest FSD software, version 14, is already being tested in more advanced deployments in the United States. The company has also started the rollout of its fully unsupervised Robotaxis in Austin, Texas, which no longer feature safety monitors.

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Tesla Semi lines up for $165M in California incentives ahead of mass production

The update was initially reported by The Los Angeles Times.

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Credit: @HinrichsZane/X

Tesla is reportedly positioned to receive roughly $165 million in California clean-truck incentives for its Semi.

The update was initially reported by The Los Angeles Times.

As per the Times, the Tesla Semi’s funding will come from California’s Hybrid and Zero-Emission Truck and Bus Incentive Project (HVIP), which was designed to accelerate the adoption of cleaner medium- and heavy-duty vehicles. Since its launch in 2009, the HVIP has distributed more than $1.6 billion to support zero-emission trucks and buses across the state.

In recent funding rounds, nearly 1,000 HVIP vouchers were provisionally reserved for the Tesla Semi, giving Tesla a far larger share of available funding than any other automaker. An analysis by the Times found that even after revisions to public data, Tesla still accounts for about $165 million in incentives. The next-largest recipient, Canadian bus manufacturer New Flyer, received roughly $68 million.

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This is quite unsurprising, however, considering that the Tesla Semi does not have a lot of competition in the zero-emissions trucking segment.

To qualify for HVIP funding, vehicles must be approved by the California Air Resources Board and listed in the program catalog, as noted in an electrive report. When the Tesla Semi voucher applications were submitted, public certification records only showed eligibility for the 2024 model year, with later model years not yet listed.

State officials have stated that certification details often involve confidential business information and that funding will only be paid once vehicles are fully approved and delivered. Still, the first-come, first-served nature of HVIP means large voucher reservations can effectively crowd out competing electric trucks. Incentive amounts for the Semi reportedly ranged from about $84,000 to as much as $351,000 per vehicle after data adjustments. 

Unveiled in 2017, the Tesla Semi has seen limited deliveries so far, though CEO Elon Musk has recently reiterated that the Class 8 all-electric truck will enter mass production this year.

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Tesla reveals major info about the Semi as it heads toward ‘mass production’

Some information, like trim levels and their specs were not revealed by Tesla, but now that the Semi is headed toward mass production this year, the company finally revealed those specifics.

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Credit: Tesla

Tesla has revealed some major information about the all-electric Semi as it heads toward “mass production,” according to CEO Elon Musk.

The Semi has been working toward a wider production phase after several years of development, pilot programs, and the construction of a dedicated production facility that is specifically catered to the manufacturing of the vehicle.

However, some information, like trim levels and their specs were not revealed by Tesla, but now that the Semi is headed toward mass production this year, the company finally revealed those specifics.

Tesla Semi undergoes major redesign as dedicated factory preps for deliveries

Tesla plans to build a Standard Range and Long Range Trim level of the Semi, and while the range is noted in the company’s newly-released spec list, there is no indication of what battery size will be equipped by them. However, there is a notable weight difference between the two of roughly 3,000 lbs, and the Long Range configuration has a lightning-fast peak charging speed of 1.2 MW.

This information is not available for the Standard Range quite yet.

The spec list is as follows:

  • Standard Range:
    • 325 miles of range (at 82,000 lbs gross combination weight
    • Curb Weight: <20,000
    •  Energy Consumption: 1.7 kWh per mile
    • Powertrain: 3 independent motors on rear axles
    • Charging: Up to 60% of range in 30 minutes
    • Charge Type: MCS 3.2
    • Drive Power: Up to 800 kW
    • ePTO (Electric Power Take Off): Up to 25 kW
  • Long Range:
    • Range: 500 miles (at 82,000 lbs gross combination weight)
    • Curb Weight: 23,000 lbs
    • Energy Consumption: 1.7 kWh per mile
    • Powertrain: 3 independent motors on rear axles
    • Charging: Up to 60% of range in 30 minutes
    • Charge Type: MCS 3.2
    • Peak charging speed: 1.2MW (1,200kW)
    • Drive Power: Up to 800 kW
    • ePTO (Electric Power Take Off): Up to 25 kW

It is important to keep in mind that the Semi is currently spec’d for local runs, and Tesla has not yet released or developed a sleeper cabin that would be more suitable for longer trips, cross-country hauls, and overnight travel.

Tesla Semi sleeper section and large side storage teased in new video

Instead, the vehicle will be initially used for regional deliveries, as it has in the pilot programs for Pepsi Co. and Frito-Lay for the past several years.

It will enter mass production this year, Musk confirmed on X over the weekend.

Now that the company’s dedicated Semi production facility in Sparks, Nevada, is standing, the timeline seems much more realistic as the vehicle has had its mass manufacturing date adjusted on several occasions.

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