RUF Building All-Electric Porsche CaymanSAccording to ze Germans at Auto Motor und Sport, long-time Porsche tuner RUF is planning an all-electric version of the Cayman. Perhaps seeking to do battle with the Tesla Roadster, RUF's car will be allegedly have 204 HP and 480 lb-ft or torque on tap from its electric motor. The juice will be stored in lithium-ion battery packs that can be replenished at any home outlet, providing up to a 186-mile range. Expect the electric Cayman to look much like RUF's 3400K, but with "ELECTRIC" written all over it, so that people know you're saving the whales or whatever. Of course the burning question is, how fast will it be? The standard internal-combustion RUF 3400K with 400 HP and 325 lb-ft of torque sprints from 0-62 MPH in 4.4 seconds on the way to its 180 MPH top speed. The electric car is expected to reach 62 MPH a few tenths of a second quicker, but will top out at only 124 MPH or so. This, of course, begs the question, "which would you rather drive?" [via Auto Motor und Sport, MotorAuthority]