| Attribute |
Vauxhall Insignia I Hatchback (facelift 2013) 1.6i Turbo ecoTEC Automatic × | 
Mazda 3 III Hatchback (BM, facelift 2017) 1.5 SkyActiv-D Automatic × |
| General | | |
| Make | Vauxhall | Mazda |
| Model | Insignia | 3 |
| Generation | Insignia I Hatchback (facelift 2013) | 3 III Hatchback (BM, facelift 2017) |
| Modification | 1.6i Turbo ecoTEC Automatic | 1.5 SkyActiv-D Automatic |
| Website | https://www.vauxhall.co.uk/ | https://www.mazda.com/ |
| Number of doors | 5 | 5 |
| Number of seats | 5 | 5 |
| Body type | Hatchback | Hatchback |
| Transmission | automatic | automatic |
| Number of gears | 6 | 6 |
| Production from (year) | 2013 | 2017 |
| Production to (year) | 2017 | 2018 |
| Performance | | |
| Top speed (km/h) | 209 | 181 |
| Acceleration 0-100 km/h (s) | 9.9 | 11.6 |
| City consumption (l/100km) | 9.1 | 4.9 |
| Extra-urban consumption (l/100km) | 5.2 | 4.1 |
| Combined consumption (l/100km) | 6.6 | 4.4 |
| CO2 emissions (g/km) | 155 | 114 |
| Emission standard | EURO V | EURO VI |
| Drive | | |
| Drive | Front wheel drive | Front wheel drive |
| Position of engine | Front, transversely | Front, transversely |
| Fuel | Petrol (Gasoline) | Diesel |
| Max. power (hp) | 170 | 105 |
| Max. torque (Nm) | 260 | 270 |
| Fuel Engine | | |
| Number of cylinders | 4 | 4 |
| Cylinders arrangement | Inline | Inline |
| Valves per cylinder | 4 | 4 |
| Engine displacement (cm³) | 1,598 | 1,499 |
| Compression ratio | - | 14.8 |
| Max. power @ rpm (rpm) | 4,250 | 4,000 |
| Max. torque @ rpm (rpm) | 1,650 | 1,600 |
| Cylinder bore (mm) | 79 | 76 |
| Piston stroke (mm) | 81.5 | 82.6 |
| Fuel system | Direct injection | Diesel Commonrail |
| Valve control | Dohc | - |
| Turbine | Turbocharger | Turbocharger / Intercooler |
| Fuel tank (l) | 70 | 51 |
| Engine oil capacity (l) | 5.5 | - |
| Chassis | | |
| ABS | + | + |
| Front wheel suspension | Independent, Spring McPherson, with stabilizer | Independent, Spring McPherson, with stabilizer |
| Rear wheel suspension | Multi-link independent | Multi-link independent |
| Steering type | - | Steering rack |
| Power steering | - | Electric Steering |
| Front brakes | Ventilated discs | Ventilated discs |
| Rear brakes | Disc | Disc |
| Tires size | | |
| Turning radius (m) | 11.4 | 10.6 |
| Dimensions | | |
| Length (mm) | 4,842 | 4,470 |
| Width (mm) | 1,856 | 1,795 |
| Height (mm) | 1,498 | 1,465 |
| Wheelbase (mm) | 2,737 | 2,700 |
| Kerb weight (kg) | 1,613 | 1,285 |
| Gross weight (kg) | 2,150 | 1,900 |
| Minimum boot space (l) | 530 | 364 |
| Maximum boot space (l) | 1,470 | 1,263 |
| Max. roof load (kg) | - | 75 |
| Ride height (mm) | - | 155 |