Dimensions for the 2025 BMW 420i are dependent on which body type is chosen. The maximum width and height is 1852mm x 1384mm and can vary on the basis of model.

Wheel size for the 2025 BMW 420i will vary depending on model chosen, although keep in mind that many manufacturers offer alternate wheel sizes as options on many models. The wheel size available will alter the range of tyres available to be fitted.

The 2025 BMW 420i has maximum towing capacity of 1600kg. Some models also offer heavy-duty or towing option packs which can increase towing capacity, as well as options which can hamper towing capacity. Towing capacities can vary wildly on a large number of factors. These include engine, transmission, model, and options chosen. Always check with the manufacturer or in your vehicles handbook before attempting to tow anything.