I take that to mean perhaps 150,000 miles flying the aircraft, and 300,000 total miles in cars/motorcycles. He doesn't drive much!
Indeed; I attach a lot of value to living in a nice place, and living very close to my place of work (30 mins' walk). It's a major plank of "quality of life".
Actually I have probably driven 400k miles since 1977; 100k of that on 2 wheels.