In general, there are advantages to the coupe over sedans due to its design. The coupe usually does perform better.
On the G37, the coupe version does have slightly more HP (about 2 extra), which can actually make a difference. On a straightaway, it can pull away from the sedan version.
On the G37, the coupe version does have slightly more HP (about 2 extra), which can actually make a difference. On a straightaway, it can pull away from the sedan version.