^^^^^ What he said!
I have a Rode VideoMic that is 'ok' for stuff like this, but it doesn't have the world's best bass response, so I am going to be using my Blue Yeti connected to my phone or tablet via USB, and play around mounting it in a rubber-band type mount in different places in the car, and align that audio with the video from the Canon 7D. The Blue Yeti has some really good sound quality, THX certified! (although that might be a little bit of hogwash)
I hope my local airport will let me get on the runways at night when nobody is coming in, which is almost always. There isn't actually anyone there after five, and it isn't gated, but permission would be nice... I've gotta get the car running and driving first though, so my audio clips are still months out.
In general practice though, I have found that keeping the mic away from the exhaust will get the best results. The sound from an exhaust is so intense that it can overload the mic and you get raspy, popping sound. So, you want to keep it off to the side, but not far away, and make sure there is a really good windscreen. Most mics will do better with the gain turned all the way down as well, if they have that adjustment. It's all trial and error, really.
2015 Red/Black Honda NC700X
2015 Brownstone Metallic Chevrolet Colorado Z71
2006 Black BMW F650gs
1998 Ascotgruen Metallic BMW 318i - LS Swap Project
1988 Grand Prix White Porsche 928 S4 - Almost There
1967 Marina Blue Chevrolet Camaro - Project
1957 White Chevrolet 4400 Flatbed - Project
