The MG ZS 120 Stepspeed is a sedan/saloon with 4 doors and a front mounted engine which transmits its power through the front wheels.
Its engine is a naturally aspirated petrol, 1.8 litre, double overhead camshaft 4 cylinder with 4 valves per cylinder. This unit develops 115 bhp (117 PS/86 kW) of power at 5500 rpm, and maximum torque of 160 N·m (118 lb·ft/16.3 kgm) at 2750 rpm.
The power is supplied to the wheels by means of a continuously variable gearbox.
The MG ZS 120 Stepspeed weighs a quoted 1240 kg at the kerb.
Maximum speed claimed is 185 km/h, which is 115 mph, official fuel consumption figures are 11.9/6.5/8.5 l/100km urban/extra-urban/combined, and carbon dioxide emissions are 203.0 g/km.
Full specs
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| Carrosserie | |||
|---|---|---|---|
| Carrosserie | 4/5 seater sedan/saloon | ||
| Nombre de portes | 4 | ||
| Designer | |||
| Dimensions et poids | |||
| Empattement | 2620 | 103.1 | |
| Voies AV | 1475 | 58.1 | |
| Voies AR | 1465 | 57.7 | |
| Longueur | 4532 | 178.4 | |
| Largeur | 1696 | 66.8 | |
| Hauteur | 1386 | 54.6 | |
| Garde au sol | |||
| 1.73 | |||
| Poids avec pleins | 1240 kg | 2734 | |
| Répartition poids AV | |||
| Réservoir à essence | 55 litres | 12.1 [14.5] UK [US] gal. | |
| Caractéristiques aérodynamique | |||
| Coefficient de pénétration | 0.33 | ||
| maître-couple | 2.03 m² | ||
| SCx | 0.67 | ||
| naturally aspirated petrol | |||
| Constructeur du moteur | Rover | ||
| Type moteur | |||
| Cylinders | Straight 4 | ||
| Cylindrée | 1.8 litre 1795 cc (109.538 cu in) |
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| Alésage × Course | 80 × 89.3 mm
3.15 × 3.52 in |
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| Rapport alésage / course | 0.9 | ||
| Distribution | double overhead camshaft (DOHC)
4 Soupapes par cylindre 16 Total vannes |
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| Puissance maximale | 117 PS (115 bhp) (86 kW) à 5500 tr/mn |
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| Couple maximale | 160 Nm (118 ft·lb) (16.3 kgm) à 2750 tr/mn |
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| Specific output | 47.8 kW/litre 65 ps/litre 64.1 bhp/litre 1.05 bhp/cu in |
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89.14 Nm/litre
1.08 ft·lb/cu3 |
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| Construction | |||
| Lubrification | Carter humide | ||
| Taux de compression | 10.5:1 | ||
| Carburant | EMS3 fuel inj. | ||
| bmep (brake mean effective pressure) | 1120.1 kPa (162.5 psi) | ||
| Régime maximal | |||
| Nombre de paliers de vilebrequin | |||
| Refroidissement | Water | ||
| Cylindrée Unitaire | 448.75 cc | ||
| Aspiration | Normal | ||
| Compressor | N/A | ||
| Intercooler | None | ||
| Catalyseur | Y | ||
| Performances | |||
| 0-80km/h | |||
| 0-60mph | 9.9 s | ||
| 0-100km/h | |||
| 0-160km/h | |||
| 0-400m | |||
| 0-1000m | |||
| Vitesse | 185 km/h (115 mph) | ||
| Power-to-weight ratio | Higher is better 94.03 PS/tonne (1000 kg) 0.09 PS/kg 69.16 kW/tonne (1000 kg) 0.07 kW/kg 92.74 bhp/tonne (1000 kg) 0.09 bhp/kg 0.04 bhp/lb |
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| Weight-to-power ratio | Lower is better 14.46 kg/kW 24.15 lb/bhp |
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| Consommation | |||
| Consommation | 11.9/6.5/8.5 l/100km urban/extra-urban/combined | ||
| universal fuel consumption (calculated from the above) | |||
| litres/100km | 11.9/6.5/8.5 l/100km urban/extra-urban/combined | ||
| km/litre | 8.4/15.4/11.8 km/l urban/extra-urban/combined | ||
| UK MPG | 23.7/43.5/33.2 UK MPG urban/extra-urban/combined | ||
| US MPG | 19.8/36.2/27.7 US MPG urban/extra-urban/combined | ||
| Emissions de CO₂ | 203.0 g/km NEDC | ||
| Carfolio Calculated CO2 ? | |||
| VED band (UK) | K | ||
| CO2 Effizienz (DE) | |||
| Châssis | |||
| Emplacement de moteur | front | ||
| Engine layout | transverse | ||
| Traction | front wheel drive | ||
| Répartition du couple | N/A | ||
| Direction | |||
| turns lock-to-lock | |||
| Turning circle | 11.60 m | ||
| Suspension AV | I.DW.CS.ARB. | ||
| Suspension AR | I.MulitLi.CS.ARB. | ||
| Roues AV | 6½J x 16 | ||
| Roues AR | 6½J x 16 | ||
| Pneumatiques AV | 205/50 R 16 | ||
| Pneumatiques AR | 205/50 R 16 | ||
| Freins AV/AR | VeDi/Di-S-ABS | ||
| Diamètre des freins AV | 262 mm | ||
| Diamètre des freins AR | 239 mm | ||
| Braked area | |||
| Transmission | continuously variable transmission | ||
| Rapport de démultiplication supérieure | 0.44 | ||
| Rapport de pont | 4.05 | ||
| Généralités | |||
| Carfolio.com ID | 110033 | ||
| Production total | |||
| Type mines | |||
| RAC rating | 15.9 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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2001 MG ZS 120 Stepspeed added 2003-05-02. Last modified 2013-02-28. |
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