Douglas,

You might want to look for a 535is if you are looking for the sports sedan feel.
I have an 87 535is and it came equipped with front BMW sport seats, 5 speed,
LSD, a special suspension set up and a rear trunk deck spoiler. Much less money
than an E28 M5.

I find this car to be very nimble and quick and fun to drive. I also had an 85
535 with a 5 speed and comfort seats which rode more like a passenger sedan, but
still fun to drive. The plus on an 85 is that it has the Getrag 265
transmission instead of the Getrag 260.

Gene M.