Tried every sport sedan out and was a loyal Lexus buyer. Owned several BMW in past and missed the sporty drive in BMW. One test drive in the 550 was all it took. GS430 and Infiniti could not match the combination of both luxury and sport. Took one year to testing cars to finally buy BMW 550. HUD is the best thing since sliced bread. So far no problems and puts smile on face every time I drive it. I-Drive is so easy to use dont listen to people that have not learned the system it took me two days to master it, once you do you wont go back to anything else.
HUD, feel of steering wheel, adaptive headlights, Active body roll lets the car stay flat no matter what corner also stops nose diving. Big trunk, bluetooth, big passenger space. Everything is quality inside and out. Comfort seats and access for keyless entry.
Grabby brakes hard to stop smooth, Step Tranny downshifts to aggressively which makes for jerky braking. Make M- aero package easier to get without dealership trying to rip you off.