The top of the line variant for the E38 BMW 7 Series was the 750iL. The 750iL, alongside its standard wheelbase 750i sibling, were the only E38 7 Series cars to feature a V12 powerplant. Initially, the 750iL was fitted with BMW's M73B54 V12 engine. This 5.4L engine generated 322hp and was paired to an automatic transmission which sent power to the rear wheels. For the 1999 model year, BMW introduced their updated M73TUB54 V12, which kept power and torque figures the same, but allowed the engine to pass emissions regulations. Production of the E38 750iL ended in 2001, although the model series continued life in the next generation BMW E65 7 Series.