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Elon Musk says SpaceX making good progress on Starship’s upgraded Raptor 2 engines

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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.

Starship SN8, December 2020. (SpaceX)

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.

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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.

Eric Ralph is Teslarati's senior spaceflight reporter and has been covering the industry in some capacity for almost half a decade, largely spurred in 2016 by a trip to Mexico to watch Elon Musk reveal SpaceX's plans for Mars in person. Aside from spreading interest and excitement about spaceflight far and wide, his primary goal is to cover humanity's ongoing efforts to expand beyond Earth to the Moon, Mars, and elsewhere.

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Tesla officially publishes Q4 2025 vehicle delivery consensus

By releasing these numbers directly, Tesla establishes a clear, transparent benchmark ahead of its actual results.

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Credit: Tesla

Tesla has taken the rather unusual step of officially publishing its company-compiled Q4 2025 delivery consensus on the Investor Relations site. As per analyst estimates, Tesla is expected to deliver 422,850 vehicles and deploy 13.4 GWh of battery storage systems this Q4 2025. 

By releasing these numbers directly, Tesla establishes a clear, transparent benchmark ahead of its actual results, making it harder for narratives to claim a “miss” based on outlier estimates.

Official consensus sets the record straight

Tesla’s IR press release detailed the consensus from 20 analysts for vehicle deliveries and 16 analysts for energy deployments. As per the release, full-year 2025 consensus delivery estimates come in at 1,640,752 vehicles, an 8.3% decline from 2025’s FY deliveries of 1,789,226 cars. 

Tesla noted that while it “does not endorse any information, recommendations or conclusions made by the analysts,” its press release does provide a notable reference point. Analysts contributing to the company compiled consensus include Daiwa, DB, Wedbush, Oppenheimer, Canaccord, Baird, Wolfe, Exane, Goldman Sachs, RBC, Evercore ISI, Barclays, Wells Fargo, Morgan Stanley, UBS, Jefferies, Needham, HSBC, Cantor Fitzgerald, and William Blair.

Credit: Tesla Investor Relations

Tesla’s busy Q4 2025

Tesla seems to be pushing hard to deliver as many vehicles as possible before the end of 2025, despite the company’s future seemingly being determined not by vehicle deliveries, but FSD and Optimus’ rollout and ramp. Still, reports from countries such as China are optimistic, with posts on social media hinting that Tesla’s delivery centers in the country are appearing packed as the final weeks of 2025 unfold.

The Tesla Model Y and Model 3 are also still performing well in China’s premium EV segment. Based on data from January to November, the Model Y took China’s number one spot in the RMB 200,000-RMB 300,000 segment for electric vehicles, selling 359,463 units. The Model 3 sedan took third place, selling 172,392. This is quite impressive considering that both the Model Y and Model 3 command a premium compared to their domestic rivals. 

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Tesla’s Elon Musk accepts invitation to Israel’s Smart Transportation Conference

The announcement was shared by the Israeli Prime Minister in a post on social media platform X. 

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Gage Skidmore, CC BY-SA 4.0 , via Wikimedia Commons

Elon Musk has reportedly accepted an invitation from Israeli Prime Minister Benjamin Netanyahu to participate in the country’s Smart Transportation Conference in March 2026. 

The announcement was shared by the Israeli Prime Minister in a post on social media platform X. 

A call and an invitation

Netanyahu posted on X about Musk, stating in Hebrew: “Last night, I held a joint conference call from Florida with entrepreneur Elon Musk, Minister of Transportation Miri Regev, and the head of the National AI Headquarters, Erez Askal. In the framework of the conversation, Musk responded to my invitation and Minister Regev’s invitation to participate in the Smart Transportation Conference that will be held in March.”

Netanyahu added that he and Musk discussed continuing initiatives such as the promotion of autonomous vehicle laws and the boosting of AI technologies in Israel. This, according to the Prime Minister, is aimed at making the country a global leader in emerging technologies.

“Additionally, we discussed the continuation of collaborations with Tesla and the promotion of the law pertaining to autonomous vehicles. I spoke at length with Musk about promoting and developing artificial intelligence technologies in Israel, and I said in our conversation: We intend to catapult Israel and turn it into a global leader in the field, just as we did in cyber and other technologies,” Netanyahu added.

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Tesla FSD’s upcoming rollout in Israel

Elon Musk’s upcoming conference appearance in Israel could hint at Tesla’s upcoming rollout of FSD and its Robotaxi service in the country. Previous reports have hinted that FSD is nearing regulatory approval in Israel, following strong advocacy from local owners and direct intervention from the government. 

Nearly 1,000 Tesla drivers petitioned authorities, highlighting FSD’s potential to enhance road safety. Transport and Road Safety Minister Miri Regev responded positively on X, writing “I’ve received the many referrals from Tesla drivers in Israel! Tesla drivers? Soon you won’t need to hold the steering wheel.”

Minister Regev has instructed the ministry’s Director-General to accelerate the approval process, including necessary tests. A dedicated working group, led by Moshe Ben-Zaken, is also coordinating with regulatory and safety agencies to meet international standards.

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Tesla China delivery centers look packed as 2025 comes to a close

Needless to say, it appears that Tesla China seems intent on ending 2025 on a strong note.

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Credit: @Tslachan/X

Tesla’s delivery centers in China seem to be absolutely packed as the final days of 2025 wind down, with photos on social media showing delivery locations being filled wall-to-wall with vehicles waiting for their new owners. 

Needless to say, it appears that Tesla China seems intent on ending 2025 on a strong note.

Full delivery center hints at year-end demand surge

A recent image from a Chinese delivery center posted by industry watcher @Tslachan on X revealed rows upon rows of freshly prepared Model Y and Model 3 units, some of which were adorned with red bows and teddy bears. Some customers also seem to be looking over their vehicles with Tesla delivery staff. 

The images hint at a strong year-end push to clear inventory and deliver as many vehicles as possible. Interestingly enough, several Model Y L vehicles could be seen in the photos, hinting at the demand for the extended wheelbase-six seat variant of the best-selling all-electric crossover. 

Strong demand in China

Consumer demand for the Model Y and Model 3 in China seems to be quite notable. This could be inferred from the estimated delivery dates for the Model 3 and Model Y, which have been extended to February 2026 for several variants. Apart from this, the Model Y and Model 3 also continue to rank well in China’s premium EV segment

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From January to November alone, the Model Y took China’s number one spot in the RMB 200,000-RMB 300,000 segment for electric vehicles, selling 359,463 units. The Model 3 sedan took third place, selling 172,392. This is quite impressive considering that both the Model Y and Model 3 are still priced at a premium compared to some of their rivals, such as the Xiaomi SU7 and YU7. 

With delivery centers in December being quite busy, it does seem like Tesla China will end the year on a strong note once more. 

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