Porsche 918 Spyder Versus McLaren P1 – Video

MAY 9 2015 BY ELECTRICCARSTV 9


Some on-track comparative video featuring the Porsche 918 Spyder and the McLaren P1 courtesy of MotorTrend.

Per MotorTrend:

“On this very special episode of Head 2 Head, presented by Tire Rack, we present a hypercar battle for the ages: the McLaren P1 versus the Porsche 918 Spyder. Both of these cars have carbon fiber tubs and body panels. Both have small displacement, high revving V-8s packed between their passenger compartments and rear axles. Both use twin-clutch transmissions, carbon ceramic brakes, and active aerodynamics. Both have roughly 900 hp. Both are plug-in hybrids. And today, with the help of pro racing driver Randy Pobst, we find out which one is fastest around Mazda Raceway Laguna Seca!”

It's Go Time!

It’s Go Time!

Categories: Porsche

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9 Comments on "Porsche 918 Spyder Versus McLaren P1 – Video"

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And that’s how you compare performance of cars. Please show Tesla P85D racing other competing cars.

This was an AWESOME review! LOVED IT!

Two very sweet car.

Love the video.

Despite the fact that I love EVs, you have to admit that those two cars sounds so wonderfully…

And the FASTEST Production car on a racetrack is NO doubt a PHEV, Porsche 918. It has been proved that 918 can rule just about every track there is…

With all electric cars, it possible to have two megawatts of power. Or about as much as P1, 918 and LaFerrari combined.

2MW is 2,000kW. Assuming even the most aggressive 20C estimate, you would need 200kWh of battery. That is no longer a “race car”, but weigh as much as school bus…

In addtion, the 2,000kW motors would overheat during the endured usage at the race track… Even 10% loss would end up with 200KW of heat which are difficult to remove from the compact packaging of electric motors…

Toroidion concept race car get’s 1000 kW (1 MW) power from 18 kWh pack weighing 150 kg.

Obviously they don’t get much range with 18 kWh pack, but they have so fast battery swapping that the car doesn’t even need to stop for it.

1. It is concept car.
2. 1MW is only 50% of 2MW. Double the power, double the heat dissipation.
3. Battery swap don’t require battery longivity if you intend to overheat it and use it quickly…
4. If you can even use close to 1MW to power the car, then 18kWh would last about 1 min considering near 100% efficiency. At those power level and instant load, you will be lucky to have 60% efficiency. Which mean at 1MW, you will be lucky to get about 40 seconds of run time…

1. Yes it is, but there are other with similar power density such as Koenisegg Regera. My point was that huge power doesn’t require huge battery size. The battery technology with very high power density exists.

2. If you can get 1 MW out of 150 kg, then you can get 2 MW out of 300 kg. 300 kg is a big pack, but certainly not too big for a car. Heat dissipation is manageable, if it is divided between four or even more motors.

3. Longevity can be an issue with high discharge rates, but supercars have always been ridiculously expensive to maintain. Nothing new there.

4. Exactly. Power is not a showstopper for EV supercar. Range is. This is the reason why 918 and similar cars intended for aggressive high velocity driving still rely on ICE.

No, range is not a showstopper for electric race car, because battery can be hot-swapped while car is still moving.

If used non-rechargeable lithium batteries, it is possible to have about 200 kWh battery that weights about 500 kg. This is more than enough for any racing purposes. Non-rechargeable lithium batteries has energy density about 500 Wh/kg versus 230 Wh/kg for rechargeable lithium-ion batteries.

Remember that not too many years ago, Formula 1 cars had several engines for each grand prix weekend and even separate qualification engine. Therefore it is perfectly justified from cost perspective to use non-rechargeable lithium batteries.