So I kicked off a rather heated debate a few months back about whether the Mrs should consider a diesel SLK. She took the plunge and opted for a 2016 SLK 250d and it is an absolutely fantastic piece of kit. Engine noise is really of no consequence, and while lacking any sort of tailpipe growl, it drives like a proper roadster. Nicely appointed inside and able to take a modest suitcase (even with the roof down) it may well be called upon for a wee waft down to France for the Autumn break. I'm no petrolhead but, if you're considering one, don't be put off by the diesel engine.