The BMW 3 Series is the very core of the firm’s model range, to the extent that the strengths (and weaknesses) of this saloon car effectively define the brand. It combines affordable aspiration with premium interior quality and enough space for many uses, and underpins it all with the superb driving dynamics BMW has built its reputation upon.

Not that we should be surprised. The 3 Series name has been around since the 1970s, so the company has had decades to perfect the formula. The current, seventh-generation 3 Series has been on sale since 2019, has been updated twice, and we’ve driven many examples, covering many miles and putting it to every use. You can read more about how we test cars at Parkers on our explainer page.

There’s a whole family of 3 Series models beyond the ‘core’ saloon version that this review focusses on. There’s also the practical 3 Series Touring estate, the plug-in hybrid 330e, and the high-performance BMW M3. On top of that, there’s the 4 Series coupe, convertible and five-door fastback, plus the electric i4, that have been spun off the 3 Series platform.

Key 3 Series rivals include the Audi A5 and Mercedes-Benz C-Class, plus less obvious alternatives such as the Alfa Romeo Giulia and Citroen C5 X. There are some other cars that are no longer available to buy new but can be considered next to a used 3 Series, such as the Jaguar XE, Lexus IS, Volvo S60 and Kia Stinger.

The range of engines available in the 3 Series was slimmed down in 2024 alongside the latest design refresh. Aside from the plug-in hybrid 330e, only the 184hp 320i and 374hp M340i remain; the diesels have been dropped. Both have an automatic gearbox, the latter also has xDrive all-wheel drive. If you want an electric 3 Series you’re out of luck, although the BMW i4 is pretty close, and one of the best electric cars you can currently buy. You can check details of the engines no longer available on our specs pages.

There are three trim levels: Sport and M Sport, while the M340i stands as its own level. They all come very well equipped with Apple CarPlay and Android Auto connectivity, satnav and climate control.

Keep reading for our full review of the BMW 3 Series, covering everything from the interior and its practicality to performance and how much it costs to run. To find out how we reached our verdict on the BMW 3 Series, check out our how we test cars explainer page.