Mercedes-Benz R-Class

2011 Mercedes-Benz R-Class - Click above for high-res image gallery Not too long ago, there was a time when all of the vehicles in an automaker's portfolio weren't required to wear the same uniform. Each model could be its own unique expression of the brand's strengths without being forced to schedule an appointment with the corporate plastic surgeon. Granted, some marques lost a bit of identity with scads of mismatched children running around the lot, but the world's automotive variety pack was considerably more interesting. If you didn't like the face on one product, but wanted to stick…