Just to add , you want a 430 .....
I had a 320 before , and the difference is amazing .... the V8 cars just seem more solid on the road than the V6's ....
Plus you get the addictive soundtrack ... one you get a 430 , start looking for a CLK 55 backbox
I honestly can't see myself ever going back to less than 8 cylinders . It was a revelation.
Have you driven a 430 yet ? where in Surrey are you , i'm in Hampton Court , happy to take you for a ride one day if you are nearby.