 Bought an M35X with Tech. package, splash guards after comparison with RL, A6, 528xi, STS4, GS 350 awd, MB E350 4M, S80V8, Passat 4M.  Best car for the money considering std. and opt. features, driving experience (acceleration, steering, braking), ride, interior and exterior aesthetic design, egonometric design, functionality and legiblity of controls and operating costs.  Next best car is MB E350 4M, but $12k more similiarly equipped.  Disappointed with gas mileage - 16 city/24 highway (with cruise control) and non-aggressive driving. Very comfortable for long distance driving. Needs 6 speed trans.  Engine growl annoying.