| Attribute |
BMW 4 Series Coupe (F32, facelift 2017) 420d xDrive Steptronic × | 
Alfa Romeo Giulietta (Type 940 facelift 2016) 2.0 JTD TCT × |
| General | | |
| Make | BMW | Alfa Romeo |
| Model | 4 Series | Giulietta |
| Generation | 4 Series Coupe (F32, facelift 2017) | Giulietta (Type 940 facelift 2016) |
| Modification | 420d xDrive Steptronic | 2.0 JTD TCT |
| Website | https://www.bmw.com | https://www.alfaromeo.com/ |
| Number of doors | 2 | 5 |
| Number of seats | 4 | 5 |
| Body type | Coupe | Hatchback |
| Transmission | automatic steptronic | automatic |
| Number of gears | 8 | 6 |
| Production from (year) | 2017 | 2019 |
| Performance | | |
| Top speed (km/h) | 230 | 214 |
| Acceleration 0-100 km/h (s) | 7.2 | 8.3 |
| City consumption (l/100km) | 5.2 | 6.2 |
| Extra-urban consumption (l/100km) | 4 | 4.2 |
| Combined consumption (l/100km) | 4.4 | 4.9 |
| CO2 emissions (g/km) | 117 | 130 |
| Emission standard | EURO VI | EURO VId-Temp |
| Drive | | |
| Drive | All wheel drive (4x4) | Front wheel drive |
| Engine type | - | Fuel engine |
| Position of engine | Front,ongitudinal | Front, transversely |
| Fuel | Diesel | Diesel |
| Max. power (hp) | 190 | 170 |
| Max. torque (Nm) | 400 | 350 |
| Fuel Engine | | |
| Number of cylinders | 4 | 4 |
| Cylinders arrangement | Inline | Inline |
| Valves per cylinder | 4 | 4 |
| Engine displacement (cm³) | 1,995 | 1,956 |
| Compression ratio | 16.5 | 16.5 |
| Max. power @ rpm (rpm) | 4,000 | 3,750 |
| Max. torque @ rpm (rpm) | 1,750 | 1,750 |
| Cylinder bore (mm) | 84 | 83 |
| Piston stroke (mm) | 90 | 90.4 |
| Fuel system | Diesel Commonrail | Diesel Commonrail |
| Valve control | - | Dohc |
| Turbine | Twin-power turbo | Turbocharger / Intercooler |
| Catalyst | - | Particulate filter |
| Fuel tank (l) | 57 | 60 |
| Engine oil capacity (l) | 5 | - |
| Chassis | | |
| ABS | + | + |
| Front wheel suspension | Independent, spring | Independent, Spring McPherson, with stabilizer |
| Rear wheel suspension | Multi-link independent | Multi-link independent, Transverse stabilizer |
| Front suspension | - | Coil springs |
| Rear suspension | - | Coil springs |
| Front stabilizer | - | + |
| Rear stabilizer | - | + |
| Steering type | Steering rack | Steering rack |
| Power steering | Electric Steering | Electric Steering |
| Front brakes | Ventilated discs | Ventilated discs, 305 |
| Rear brakes | Ventilated discs | Disc, 264 |
| Tires size | - 225/40 R19
- 225/45 R18
- 225/50 R17
- 255/35 R19
- 255/40 R18
| |
| Turning radius (m) | 11.8 | 10.9 |
| Dimensions | | |
| Length (mm) | 4,640 | 4,351 |
| Width (mm) | 1,825 | 1,798 |
| Height (mm) | 1,392 | 1,465 |
| Wheelbase (mm) | 2,810 | 2,634 |
| Kerb weight (kg) | 1,560 | 1,410 |
| Gross weight (kg) | 2,080 | 1,920 |
| Minimum boot space (l) | 445 | 350 |
| Max. roof load (kg) | 75 | 50 |
| Front track (mm) | 1,543 | 1,554 |
| Rear track (mm) | 1,589 | 1,554 |
| Ride height (mm) | 145 | - |
| Drag coefficient (Cd) | 0.29 | - |