Nope, in fact these brakes would be much more reliable since there is no physical interaction, and therefore no parts to ware out.
When you stop applying power to a motor the magnetic forces within the motor will act to stop it turning. By forcing it to turn, ie keeping the car moving, you induce a current in the coil, in effect turing the motor into a dynamo. As energy cannot be destroyed or created only change state, the momentum of the car is truned back into electrical energy reducing the cars momentum. Virgin trains advertise the same thing on their adverts and many trains use this technique often refered to as dynamic braking or simply dynamics.
These type of cars are the future. TNT are currently trialing a lorry in London that is fully electrical and has to limited in performance other wise it would be doing 0-60 time in less than 6s!!!! Silently too!!
Depending on the cost I'dhave one of these over a twurbo conversion any day!
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.