We have all seen the likes of a BMW 320d parked at a traffic light and noted the 'M' badge on the side fender and perhaps a retrofitted badge on the boot lid, knowing well that this is not a genuine M model. Then there are models that come as standard with an M badge that designates performance, and yet there are differences in these models too.
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Today we are going to unpack the difference between the BMW M and M Sport model designations while also deciphering the differences between other models you are likely to see, such as M Performance and Sport Line, as examples.
BMW lineup
We have compiled a table detailing the BMW models options; however, this excludes the likes of the xLine designation available on some of the brand's SUV but includes the five options generally seen across most model ranges.
| Standard | Sport Line | M Sport | M Performance | M |
| The Standard BMW specification is what you will receive if you order a non-performance-oriented BMW model and do not opt for any styling packages. | The Sport Line models provide a more dynamic look to the model, with larger wheels, added trim pieces and a more aggressive body kit There is no change to the engine, drivetrain, or suspension. |
The M Sport models are also mostly a cosmetic addition both inside and out, with M-style body kits, wheels, trim items and the 'M' badging seen throughout the vehicle. The M Sport models also feature a lowered ride height of around 10mm to provide slightly sportier handling. | The M Performance models receive interior and exterior styling updated very similar to the M Sport models, but also have engine, brake and suspension upgrades supplied by BMW's M Division, making them performance cars that are more usable on a daily basis. | Pukka BMW M models take a standard BMW product and make a host of changes. These often include bespoke engines, massive brakes, the use of exotic materials such as carbon fibre, specifically developed suspension systems, unique interior additions and M-specific wheel and trim options all designed to provide the maximum amount of performance. |
The difference between M and M Sport
As mentioned above, there are essentially three different M designations, including M, M Performance and M Sport models. The entry-point into the M family tree is the M Sport models, which are an accessory package that features various M badges both inside and out, a sportier body kit, larger wheels and a slightly lower ride height for better handling.
The M Performance models within the BMW range are there to bridge the gap between the M and Sport models, and as such, their interior and exterior styling are very similar to the M Sport models, however, there are more powerful engines, stronger brakes, specifically tuned suspension systems and sportier exhaust notes, all supplied from the M Division.
The true M models are an entirely different proposition to both the M Sport and M Performance products, so much so that the brand considers the M models as entirely separate from the standard models on which they are based. Aside from historical anomalies such as the US-specification E36 M3, the 1M Coupe and the first iteration of the M2, all BMW M models have had bespoke performance-tuned engines. All M models have historically received powerful brake systems, specifically designed suspension set-ups, flared wheel arches, large wheels, enhanced aerodynamics and a general emphasis on pure performance.
