Were you (the guy with a higher top end than the G35) running a stock non SRT Coupe?

The Crossfire's top end is electronically limited to 150.

The G35 Coupe's is electronically limited to 155.

Not saying you did not beat the guy in your little blvd blast, but given that you two were supposedly weaving in and out of traffic at speeds in excess of 100 mph, my guess is that it had more to do with driver timidity or a sudden attack of common sense than your car actually being faster than the G35, which according to all stats and tests it isn't...unless it's an SRT6.