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Which car is faster? SL55 or the M6 cabrio?

1660 Views 9 Replies 7 Participants Last post by  GotYa!
I keep seeing conflicting reports on 0-60 sides with the M6 convertible. I know BMW said 4.1 or 4.2.....but then another magazine had it at like 4.8. I don't see how it is as fast as the M6 coupe with the extra 500 pounds.

As for the 55....I have seen 0-60 times at around 4.8 too.....but supposedly the new SL63 is doing 4.4?
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