The standard suspension works extremely well with quick, responsive steering response. Overall, the 300M feels like a refined luxury sports touring sedan. Noise and vibration are not at Lexus levels, however. A small amount of wind noise can be heard and a bit of road vibration comes through.
The optional handling package includes firmer strut damping, taller rear jounce bumpers, a firmer feeling steering gear, Michelin HX all-season performance tires, high-performance brake linings, stiffer front brake calipers and externally vented brake rotors. The suspension tuning is designed for a more controlled ride, sharper steering response, improved stability in transient maneuvers and increased cornering grip. The brakes are designed to increase stopping ability, enhance pedal feel and resist brake fade in hard use. Next Page