New Sport Car

The diesel version of the X5 isn’t the obvious choice for a tuner like Germany’s Lumma, who is more likely to modify a big-cube petrol engine, but its latest car is in fact based on the more mundane diesel six. Lumma’s previous works include modified versions of the M5 and M6, in the form of the CLR 500 RS and 600 S models, and now engineers have focused their skills on squeezing the most out