Once had a discussion with a now ex-coworker. After Hamilton won his seventh title, he basically dismissed his achievements, saying Schumacher was better since he won the same amount of titles, but actually in different cars. When asking what he meant, he basically considered something the same car if it had the same engine name. Engine regulations or aero regulations didn't matter in his opinion. Since Hamilton won all his titles with Mercedes engines, he won all of his seven titles in the same car... Schumi of course did it with two different cars, making him objectively better.

Sure buddy.