Cheap BMW M4 Towbar

No — BMW has never offered a towbar as a factory-fitted or approved accessory on the M4, and no variant of the M4 (including Competition, CS, CSL, or xDrive versions) was designed or homologated for towing. The M4's rear subframe, bumper structure, and body reinforcement are not configured to accept a towbar, so there is no genuine used BMW M4 towbar to source from a dismantler. If you need a towing-capable BMW, you should look at models such as the 3 Series Touring or 5 Series Touring, which were factory-approved for towbar fitment.

Because no OEM towbar was ever made for the M4, there is no used factory part to buy from a breaker — what you would be looking at is a specialist aftermarket fabrication, which is outside the scope of what a dismantler can supply. Any structural modification to the rear of an M4 for towing purposes would need careful engineering assessment and would likely affect your insurance and warranty. A breaker is not the right route for this; you would need to contact a specialist towbar fabricator directly.

The BMW M4 uses a heavily modified rear subframe, rear bumper, and underbody structure that differs significantly from the standard G22/G82 4 Series platform, so a towbar designed for a standard 4 Series (even of the same generation) would not be a straightforward swap onto an M4. More importantly, BMW never homologated the M4 for towing, so no approved 4 Series towbar is intended to be adapted across. This is not a used-parts fitment question a breaker can reliably answer — you would need a specialist engineer.

It's possible you are looking for a towbar-mounted cycle carrier receiver rather than a towing towbar, and these are two different things — however, neither has a factory-approved mounting point on the M4. Some M4 owners use boot-mounted or roof-mounted cycle carriers as an alternative; a breaker can supply components such as roof rail fittings if your car has them, but cannot supply a towbar receiver that does not exist. It is worth clarifying exactly what you need before contacting dismantlers.