Not really. I assume you've got your heart set on a Merc, though the desire for them has always passed me by other than a status symbol.
Whilst physically the nicer looking to me, a 3 series BMW is still a 3 series BMW.
I would naturally go for the one that shows you know slightly about your motors, though you're not a silly petrol head that can quote the max revs for the '57 chevy.
You want to be an innovator, and not a sheep. You want a car never to be hijacked by the hairdresser, the estate agent, the gangster or anyone from essex, though not niche enough that parts, knowledge, and lack of depreciation are hard to come by.
Require substance, and reliabllty ASWELL as style. Ability to hold a nice comfortable cruising speed, though for street driving just how quick does a cab have to be? "2 miles and hour, so everybodys see's you" as a great poet once said.
It's the Audi A4 Cabrio mate. staring you in the face (well it is now). You can thank me by adding me on the insurance (5 years no claims, leafy bromley zero crime rate etc

, I have experience in their fore-runner

, never go out drinking...
And the best thing is that they look the bollocks. Classy and refined yet as previously said not notorious amongst the chavs yet (they all pipe for the TT).
I don't mind what colour you get it in as long as it's black.