Two Coupes with some similarities, but otherwise different in most aspects such as the starting price, horsepower, fuel economy, ground shadow size, and height. First of all, the 2016 Dodge Viper is priced $261,605 lower compared to the base MSRP of the 2016 McLaren 675LT Coupe. Also, although the 2016 675LT Coupe has a more powerful engine than the 2016 Viper, it gets 3 more mpg. And finally, although the Viper is slightly smaller, it has a taller body than the 675LT Coupe. Among similarities are the body structure, market segment, and maximum occupancy.