520i has the M52 engine with 1991 cc and 150 hp. My M has a package that includes sports suspension and steering. It was made for the Italian market. I've got three years and put up more than its market price of the services and reconstruction. I move a little km per year but will preserve it. He crossed the 213000 km. accelerates in 10.2 seconds to 100 km / h and goes 220 km / h. Consumption is 9-13 liters per one hundred kilometers.