Using Hill Mode 2 all the time (except on the highway). My Brembo's will last 20 years this way.
Hill Mode 3, with even stronger deceleration, would be too much as drivers behind you do not see any brake lights (although - one more advantage of driving a Karma - they will always have their eyes focused on you!).
Hill Mode 3, with even stronger deceleration, would be too much as drivers behind you do not see any brake lights (although - one more advantage of driving a Karma - they will always have their eyes focused on you!).