The Smart Formore and the car codenamed X204 are what kind of cars?
Mercedes-Benz GLK-Class The Mercedes-Benz GLK (codename X204) is a compact luxury crossover SUV that went on sale from the autumn of 2008 after its public debut at the 2008 Beijing Auto Show alongside the competing Audi Q5.
CityCar The CityCar or MIT CityCar is an urban all-electric concept car designed at the Massachusetts Institute of Technology Media Lab. The project was conceived by William J. Mitchell and his Smart Cities Research Group. It is now led by Kent Larson, Director of the Changing Places Research Group at the Media Lab. The project came into conception in 2003 under the support of General Motors. Time Magazine selected the CityCar as one of the "Best Inventions of 2007."