I think the '32 is a fair bit faster than the more lazy V8 - you're looking at 350bhp and quite a lot of torque since it's a supercharged engine.
Autocar road tested one famously at 4.6 seconds 0-60!!
I think at the £10K mark that they are approaching, they make a very tempting buy, purely from a performance point of view in that generation MB lineup
Will