Makes no matter but you just need to be honest when telling about the combo. I like to know the full combo when I see or read about a car and of course if it has a power adder it makes a big difference on what you think it will run. If a car is turbo or supercharged it makes a big difference on the performance. Its like I dont think my 63 will keep up with a 528 Hemi Dart or a 360 Dart with twin turbo's on it. Ron