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McLaren EV supercar: Here’s the math that says it’s 5-10 years off

It emerged last December that McLaren had built an all-electric testbed for a future EV supercar, to go along with the English automaker’s $1.4 billion investment in electrified powertrains. But as we told you a few weeks ago, McLaren CEO Mike Flewitt said that such a car was, as a practical matter, years away from production. Now COO Jens Ludmann has put some numbers to the carmaker’s quest, saying, “[The] Senna has 800 PS [Pferdestärke] on 1,200 kg, that’s about the power to weight that we’re looking for.” He’s talking about 789 horsepower in a package lighter than a base Honda Civic Coupe.

The issue isn’t energy capacity, it’s energy density. Said Ludmann, “[The] battery technology should achieve 500 watt-hours per kilogram. That is a level where it really makes sense. Today we are around 180 watt-hours per kilogram.” McLaren Engineering provides batteries for Formula E rated at 216 Wh/kg, but those packs aren’t suitable for a consumer road car. According to what the company’s learned from the battery industry, we’re 5 to 10 years away from 500 watt-hours per kilogram for a roadworthy vehicle.

In 2015 Rimac unveiled a battery it made for the Koenigsegg Regera. Said to be the most energy-dense car battery at the time, it boasted a power-to-weigh ratio of 60 Wh/kg. Figure that the battery industry’s adding 40 Wh/kg per year — which gets us from 2015 to Ludmann’s 180 Wh/kg current state of affairs. Using that measure, we’re 8-10 years away from 500 Wh.

McLaren wants its theoretical EV owner to be able to do 30 minutes or 10 hard laps at the track, be “as exciting as a 675LT,” and recharge in 30 minutes for another half-hour track session. That battery would need exceptionally high energy density, and the cells and electronics would need to stand up to constant high power output and extreme discharge cycles. To enable that with today’s battery tech, you’d end up with a vehicle that could do 500 miles in everyday road use, be far too heavy for McLaren’s aims, and take far too long to charge.

Ludmann told Wheels magazine everything else about the EV supercar is “all resolved — easy.” While we dig in for what could be a lengthy wait, we’ll have to be satisfied with the McLaren hybrids that should start showing up in a couple of years.

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McLaren’s electric supercars are not quite there yet

While Rimac is all about electric supercars and has just revealed its outrageous-sounding 1,914-horsepower C_Two car at the Geneva Motor Show, McLaren is cautious about producing an EV quite yet. Hybrids are far more suitable for McLaren’s immediate need than launching a full electric vehicle, says McLaren CEO Mike Flewitt.

In an interview with Autocar, Flewitt says McLaren’s electric portfolio is still very much in development, and that one in two McLarens sold in 2022 is to be a hybrid. But it wouldn’t be right for the brand to launch a half-baked, full-electric supercar, and McLaren’s standard is that any EV would have to offer performance equal to its existing cars. “It’s a challenge for us to produce the same engagement as with the P1, the Senna and the 675 LT,” says Flewitt.

Earlier, he has stated that for an electric supercar to match the P1’s performance, it would have to weigh two tons.

EV development, however, is still on track, and McLaren has “an electric mule running around.” For the company, getting the desired electric performance in a production-viable package is still at least five years away, Flewitt says. “It’s not in [the Track22 plan] because we don’t have an answer yet.”

McLaren is a lot more positive about hybrids. Flewitt says hybrid tech is a lot easier to integrate into a powertrain design, making it integral instead of bolt-on. As he said a month ago: “Hybrid design is part of the next platform. It is designed-in from day one rather than having to adapt an existing chassis.”

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McLaren said to be developing an all-electric hypercar

British supercar maker McLaren plans to produce an all-electric version of its Ultimate Series hypercars, the automotive website Autocar reports.

The new, unnamed vehicle is reportedly not the same as the previously rumored P15, a lightweight Ultimate Series car we learned more about just last month. The EV is set to arrive sometime after the release of both the P15, which comes later this year, and the release of the BP23 hybrid in 2019. The latter is a replacement for the three-seater F1.

Autocar reports that the automaker plans to produce five models of the EV initially and let favored McLaren owners drive them as part of the development process. It also plans to introduce hybrid replacements for its 570 Sport Series and 720 Super Series in 2020 and 2021, respectively.

McLaren has said it expects half of its fleet to feature hybrid powertrains by 2022.

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