There are various European roads numbered M3 appearing in Euro Truck Simulator (ETS 1), Euro Truck Simulator 2 (ETS 2) or related games. The following list describes their existence in the game(s).

Country Road Game Nearby Cities
Hungary M3 motorway ETS 2 (Going East!) Budapest, Debrecen
United Kingdom M3 motorway UKTS, ETS 2 London, Southampton
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