that's the MG ZT 190.
the chasis is actually taken from BMW 5 Series, hence the connection, and is shared with the Rover 75. the rest of the car is by MG, and it is AWESOME. they also make a Tourer/Wagon called the ZT-T. the 190 stands for horsepower. and the car will make its USA debut sometime late 2003 or 2004 with the MG X80 sports car and possibly the MG TF roadster.
my favorite is the MG ZS 180 which is actually a chasis design from honda with a 180HP Rover V6
here's a pic:
