At first I didn't like it. Felt jerky and a too spirited. The more I drive it the more I'm liking it. Plenty of torque and quickness. Most of my driving seems to be local with some short 20 mile freeway drives and an occasional 100 mile drive. 2900 rpm at 70 mph doesn't feel bad. Haven't driven the 3.07 differential so can't compare. I think if I was doing a lot of freeway driving I would want the 3.07. Getting about 24/25 mpg. Loving this car and everything about it. Waiting for the Bluebus module for blue tooth integration. Not missing my Z3 m roadster so it will be going up for sale this spring.