After Thursdays overkill in Soarers I started searching on some videos. I found this short 1987 comparison video of the old (1986) and new (1987) Soarer:

As you can see: the new MZ21 Soarer with Air Suspension did improve a lot over the older (yet already amazing) Soarer with TEMS. The Air Suspension clearly compensates breaking out the new Soarer and keeps it in a straight line... Also the 0.2 liter increased 5M to 7M really makes a difference: about two seconds on the 0-400m run. But that is rather normal for a 70hp increase. Still I personally prefer the MZ11 styling above the MZ21...