This is Jaguar's new concept car, on display in Detroit. It is designed by Ian Callum and provides cues of what the new XK is going to look like. It is powered by a V8 and has an aluminium body. It is said to get from 0-100 km/h in 5 seconds and has a top speed of 290 km/h.
Perhaps it looks a bit too much like an Aston, but I don't think that's a bad thing. It looks great IMO. However, I don't really like the wheels. They're too big and have a little too high a bling-factor.