Cobras are NOT particularly low, although the front rails on an accurate frame 
can scrape on rare occasion.  It's the lack of overhang in front of the wheels that makes approaches and aprons not a problem. Under exhausts are a different story. 
When I go to car shows with my buddies, they all have to take driveways slowly and at an angle. That's when I go around and give 'em a hard time 
