Don't do it there is nothing out there that will give you ALL the 63 has to offer. Fater maybe, handling maybe , but in a fwe words to sum up the 63,
roof down, exhaust note, gearbox , comfort, looks it kills the 55, no no
I am not talking about speed, just one aspect is, when I had a 55,
you never knew what it would do when you kicked down, sometimes
nothing, very scary when overtaking, the 63 gearbox is a piece of perfection,
it gets feedback from throttle input and puts you in exactly the right gear
you want, I think it's amazing, along with proper manual, not just auto
box overiding. I love mine even more after 5 months, every day is a pleasure
and I have done more miles in the 63 in 5 months than I done in 2 years of the 55, and roof is always open. You will really miss it.
AND every where I go people look and ask , particularly when you blip the
throttle for them.