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Jaguar XKR-S (2011) at 2011 Geneva motor show

Jaguar has turned up the power and sharpened the handling on the flagship XKR coupe for the 2011 Geneva motor show. The result: the XKR-S, claimed to be the fastest production Jaguar sports car ever. For 2011, Jaguar is returning the XKR-S to the top of the XK range. CAR readers may recall the well regarded 2008 limited edition that last carried the badge.  The XKR-S has an uprated version of the 5.0-litre supercharged V8 found in the standard XKR. Power moves up to 542bhp (from 510bhp), and torque swells to 501lb ft (up from 461lb ft) thanks to lots of ECU tweakage.

Lotus Exige S Roadster at 2012 Geneva motor show

Here’s the new Lotus Exige S Roadster, unveiled on the eve of the 2012 Geneva motor show. With a sub-four second sprint to the 60mph mark, it’s Hethel’s quickest soft top ever; we've already seen the Lotus Exige S in coupe guise, but this is the open-top Roadster variant. A hefty 3.5-litre V6 engine lies behind the cockpit which, says Lotus, has received the benefits of its racing technology.

Make like a tree and Leaf: We drive Nissan's coming electric vehicle

From behind the wheel, the production version of the Nissan Leaf electric car is smooth and silent, feels nearly friction-free and offers all the prodigious torque inherent in an electric car. That's what we found after a short drive around Dodger Stadium in Los Angeles on Friday. The body you see in the photo is a Versa.