wilber1 wrote:
For how long?
Likely for just a few seconds. The ridiculously high hp ratings are nothing but gimmicky bragging specs. I read a test on the Tesla Model S. In "Ludicrous" mode it would put down a blistering quarter-mile time, in the 11 second range IIRC. It took a 45 minute warmup for the battery, and after several 1/4 mile runs the car derated to about a high 15 second 1/4 time. Not bad, but with a $600 computer reflash my lowly turbo gas VW will run high 14s all day long.
I suspect the 1000 hp rating of the GM Hummer EV will be similar. First of all, with that kind of horsepower you will be doing triple digit speeds in a few seconds at full power. And assuming the Hummer has the 200KwH battery promised, that 1000 hp would completely deplete the battery in just 20 minutes, not factoring in losses for heat, etc. Having said that, the 200 KwH could theroretically produce 100 hp for close to 3 hours, making it an EV that could tow a decent size trailer with an acceptable range.
