BMW 4 Series 2014–2021 car dimensions: 4671 mm long, 1870 mm wide and 1383 mm high. Unladen weight is 1,497 kg. Boot space with the seats up is 445 litres.
Dual-zone automatic climate control is standard. Cruise control with brake function is standard. The 8.8-inch Professional navigation display is standard and touch-capable on later cars. Apple CarPlay is optional. Front and rear parking sensors are standard. A reversing camera, blind-spot warning, lane departure warning and automatic emergency braking form part of optional Driving Assistant or similar packages.
The boot offers 445 litres with the rear seats in place. The 60:40 split rear seats fold for through-loading of longer items.
Trailer loads are listed as not available. Payload is given as approximately 470 kg depending on specification. The car uses M-specific adaptive suspension and is not set up for heavy towing or work use.
The cabin centres on firm M sports seats with width-adjustable bolsters, integrated headrests and electric adjustment plus driver memory. Dual-zone climate control is standard along with an M leather steering wheel and sliding front armrest. Merino leather and ambient lighting are available. The standard carbon roof keeps the feel light and sporty. an optional glass sunroof opens the space but replaces the carbon panel. Rear seats fold 60:40 for through-loading yet remain tight for adults. Overall the interior is driver-focused, supportive on fast roads and finished to a high standard without excess luxury extras.
Petrol only. official combined consumption 8.8 l/100 km manual or 8.3 l/100 km DCT (NEDC early figures).
Condition Based Service (CBS) sets oil and inspection intervals.
Related 3 Series scored five stars in Euro NCAP.
Standard kit includes front/side/head airbags, DSC with M Dynamic Mode, ABS, CBC, DBC, tyre-pressure display and ISOFIX.
The M4 runs a 3.0-litre twin-turbo petrol six. Official EU combined figures start at 8.8 l/100 km for the manual and 8.3 l/100 km for the DCT under the NEDC cycle used at launch. later WLTP-equivalent values sit higher depending on wheels and options. Premium unleaded is required.
Servicing follows BMW’s Condition Based Service system. The car displays remaining distance or time for oil, vehicle check and other items. Brake fluid is time-based. Specialists often advise shorter oil intervals than the maximum CBS allows, especially with track use.
Crash protection draws on the related 3 Series platform, which earned five Euro NCAP stars. Standard equipment covers dual front airbags, side airbags, curtain airbags front and rear, three-point belts with pretensioners, DSC stability control with M Dynamic Mode, ABS, cornering and dynamic brake control, tyre-pressure monitoring and ISOFIX anchors. Intelligent emergency call is fitted. Extra assistance packs such as Driving Assistant were optional.
Living with the car means budgeting for performance-tyre and brake wear plus regular fluid changes. The carbon roof and lightweight parts help keep mass down, but maintenance costs remain those of a high-output M model. Full service history is essential for longevity.
Length 4671 mm, Width 1870 mm, Height 1383 mm, Wheelbase 2812 mm (4 Series 2014–2021)
Sources: manufacturer data, BMW Group specification sheet 'Specifications of the new BMW M3 Sedan and the new BMW M4 Coupe, valid from 03/2014', 60 l tank, Rear-wheel drive from the BMW UK launch text 'The rear-wheel drive chassis with Active M Differential'.