I drove one for a number of years as the firm I previously worked for had one.

Very good runabouts and not slow as they have a fairly decent power/weight ratio. Another perk is as Clarkson once famously said, you can say you drive a turbocharged rear wheel drive Mercedes

Early ones had a problem with the keys losing partnership and I believe cracked exhaust manifolds are common. Another thing is there is the oil cannot be drained, so you have to pump it out.

Martin