Complex sentence: The engine is rated at @ 5400 rpm and of torque @ 4500 rpm, and mated to a five-speed automatic, which, as tested, results in a 0-60 mph time of 6.7 seconds and 1/4 mile sprint of 14.9 seconds.
Split into simpler sentences: The engine is rated at SAE @ 5400 rpm and of torque @ 4500 rpm. It is mated to a five-speed automatic, which, as tested, results in a 0-60 mph time of 6.7 seconds and 1/4 mile sprint of 14.9 seconds.