Not really. If you see both figures on the same page without any units named, you can generally assume from the context that 0-60 and 0-100 bare both in miles.

Not really. If you see both figures on the same page without any units named, you can generally assume from the context that 0-60 and 0-100 bare both in miles. 0-100 mph is still a pretty common performance indicator in its own right, it's just less commonly used compared to 0-60.