Interesting.
911:
6.4+ degrees caster
Yokohama Advan A048 205/55-16 front 225/50-16 rear
7x16 and 8x16 Fuchs
tire pressures front ~25 psi cold, little under 30 psi hot
tire pressures rear ~28 psi cold, ~32 psi hot
treadwear rating: 60
BMW:
~1 degree caster
Kumho tires 185/60-13, IIRC.
tire pressures ~35 psi
treadwear rating:~600
The BMW steering gets lighter once I get moving. The 911 gets heavier with speed.
The 911 has much more self-centering force.
The 911 has a light, sharp turn-in and likes to rotate with a simple flick of the wrist around twisty turn transitions.
The BMW has less of a tactile connection to the front tires. It turns in easily enough but then the steering is mushy and heavy mid-curve compared to the 911, though it is still very good and a fun car.
Steady-state comparisons are hard because I carve curves much faster in the 911.
I would say the 911 steering is excellent (naturally) and is light yet responsive and informing of the road surface/tire interaction.
The BMW is heavier and rolls alot more than the 911 does with the big sway bars. It feels average weight on turn-in then understeer takes over and it feels mushy/heavy.
Not sure if this helps any.
:condused:
