BMW 4 Series Gran Coupé 2021–2024 car dimensions: 4783 mm long, 1852 mm wide and 1442 mm high. Unladen weight is 1,695 kg. Braked towing is 1,600 kg.
Sport seats and a sport leather steering wheel are standard. Three-zone automatic climate control is fitted across the cabin. The central touchscreen supports wireless Apple CarPlay and Android Auto. Front collision warning with automatic emergency braking, lane departure warning, front and rear parking sensors, reversing camera and parking assistant with reversing assistant come as standard. Blind-spot warning is available on higher grades or packages. Active cruise control is optional.
Boot space is 470 litres with the rear seats up. Folding the 40:20:40 split rear seats expands it to 1290 litres. The wide electric tailgate aids loading for daily trips or longer journeys.
Braked towing capacity is 1600 kg and unbraked is 750 kg. Maximum payload is 555 kg. No heavy-duty cooling or reinforced suspension is listed for this model.
The cabin has a driver-focused layout with a high centre console that creates a cocooning feel up front. Standard sports seats give good side support via raised bolsters and manual thigh adjustment. Three-zone climate control is standard, with acoustic windscreen glass. Rear space is improved over the two-door with five full seats and more legroom. Optional glass sunroof, seat heating front and rear, front ventilation, and electric seat adjustment with memory add comfort for longer trips.
WLTP combined fuel use 6.6–7.3 l/100 km, CO2 150–166 g/km, Euro 6d, tank approx. 59 l, min. RON 91.
Condition-based service with oil changes typically up to 30 000 km or 24 months using BMW Longlife oil.
Standard safety: front/side/head airbags, DSC with ABS/DTC, front collision warning with braking, lane departure warning, Speed Limit Info, Park Distance Control, reversing camera and Parking Assistant.
Structurally linked to 4 Series Coupé which scored five Euro NCAP stars (97% adult occupant).
The 420i runs a 2.0-litre four-cylinder petrol with 184 hp and 300 Nm through an eight-speed Steptronic. Official WLTP figures sit between 6.6 and 7.3 l/100 km combined depending on options and wheels, with CO2 from 150 to 166 g/km under Euro 6d. Fuel tank holds about 59 litres and the engine accepts minimum RON 91.
Servicing follows BMW Condition Based Service. Oil and filter changes are indicated by the onboard system and commonly fall due by 30 000 km or two years when Longlife oil is used. Brake fluid is typically every two years. Keep the digital service record updated for resale value.
Passive safety includes a rigid passenger cell, front, side and head airbags for all rows, belt tensioners and force limiters at the front, crash sensors and tyre pressure monitoring. Active kit standard across the range covers front collision warning with city braking and pedestrian/cyclist detection, lane departure warning with steering support, Speed Limit Info, Park Distance Control front and rear, reversing camera and basic Parking Assistant. Around 40 assistance functions are available overall. The related Coupé body earned five Euro NCAP stars.
Live with the car by following the CBS prompts, using approved oils and fluids, and specifying run-flat tyres or a repair kit as fitted. The liftback boot offers 470–1290 litres and the chassis with standard lift-related dampers balances everyday comfort with sporty control.
Length 4783 mm, Width 1852 mm, Height 1442 mm, Wheelbase 2856 mm (4 Series Gran Coupé 2021–2024)
Sources: manufacturer data, BMW Media Information, Technical specifications, BMW 4 Series Gran Coupé 420i, June 2021, RON 91), engine, displacement, power , torque and transmission, The 420i is the non-xDrive model in that sheet.