This two-part YouTube deep dive is a combined two hours exploring the games that made Gran Turismo a household name, as well as a number of titles that tried to capitalize on the attention — like Sega GT 2002 and Forza Motorsport. If you’re nerdy about these things, it’s a must-watch. It also ends with a comparison of the Nürburgring Nordschleife as recreated in four different titles — an especially interesting segment, because Forza’s Green Hell isn’t green at all, and the rendition of the famed circuit in Enthusia: Professional Racing is profoundly upsetting if you suffer from seasonal depression.

Watch ’em both and reminisce on those halcyon days before microtransactions and game-breaking updates.