Generations: what one generation actually offers a buyer

What changes between those four is arithmetic, not a generation jump: kerb weight from 1190 kg to 1240 kg (+50 kg), 0–100 km/h from 10.1 s to 11.4 s (+1.3 s), top speed from 210 km/h to 188 km/h (−22 km/h), mixed consumption from 7.3 to 7.8 L/100 km (+0.5), and whether CO2 and Euro 4 are measured or not measured.

1 generation (2008-01-01 to 2009-12-31) is the entire catalogue: Hatchback 3-door, four versions, no restyling listed. There is no second generation in the data, so there is no later body, no later drivetrain, and no later clearance to wait for. The spread a buyer is choosing among is inside this one window: two 1.8 MT manuals and two 1.8 AT automatics, all 140 hp, all 175 Nm at 3800 rpm, all 4 Inline cylinders, 4 valves per cylinder, Front, transverse, compression 10.5, bore and stroke 80.5 × 88.2, fuel 95.

What changes between those four is arithmetic, not a generation jump: kerb weight from 1190 kg to 1240 kg (+50 kg), 0–100 km/h from 10.1 s to 11.4 s (+1.3 s), top speed from 210 km/h to 188 km/h (−22 km/h), mixed consumption from 7.3 to 7.8 L/100 km (+0.5), and whether CO2 and Euro 4 are measured or not measured.

Engine specs: four 140 hp versions that are not the same car

Use the names exactly as in the catalogue. Both 1.8 MT lines are 140 hp; both 1.8 AT lines are 140 hp. Separate them by the figures that differ.

VersionhpkWNmDisplacement (cm³)FuelCylinders / layoutBoostGearboxDrive
1.8 MT (10.1 s / 210 km/h)1401031751796Gasoline4 InlineNoManual, 5FWD
1.8 AT (10.1 s / 210 km/h)1401101751798Gasoline4 InlineNoAutomatic, 4FWD
1.8 AT (11.4 s / 188 km/h)1401031751796Gasoline4 InlineNoAutomatic, 4FWD
1.8 MT (10.2 s / 208 km/h)1401031751796Gasoline4 InlineNoManual, 5FWD

Power per litre (140 hp ÷ displacement in litres): 77.95 hp/L on every 1796 cm³ version, 77.86 hp/L on the 1798 cm³ 1.8 AT. The 0.09 hp/L gap is the displacement gap (2 cm³), not a different power rating.

Specific output in kW is the first real split: one 1.8 AT is listed at 110 kW, the other three at 103 kW. That 7 kW (about 6.8% more on the kW line) sits on the only version with Direct injection (direct) and 1798 cm³. The other three use Distributed injection (multi-point) and 1796 cm³.

Peak power rpm is 6300 on all four; peak torque is 175 Nm at 3800 rpm on all four. Buying “more torque” is not an option in this model.

Performance, mpg-style consumption, and what the automatic costs in seconds

Version0–100 km/h (s)Top speed (km/h)CityHighwayMixedCO2Eco class
1.8 MT (1190 kg)10.12109.95.87.3not measurednot measured
1.8 AT (1220 kg, 110 kW)10.12109.95.87.3not measurednot measured
1.8 AT (1240 kg, 103 kW)11.418810.56.27.8187Euro 4
1.8 MT (1210 kg)10.22089.95.87.3175Euro 4

The lightest 1.8 MT and the 110 kW 1.8 AT share 10.1 s and 210 km/h. The second 1.8 MT is 0.1 s slower to 100 km/h and 2 km/h slower on top speed, with the same 9.9 / 5.8 / 7.3 L/100 km. The 103 kW 1.8 AT is the outlier: +1.3 s versus 10.1 s, −22 km/h versus 210 km/h, +0.6 city, +0.4 highway, +0.5 mixed.

Range on a 52 L tank at mixed rate (tank ÷ mixed × 100): about 712 km at 7.3 L/100 km, about 667 km at 7.8 L/100 km — 45 km less per fill on the slower 1.8 AT.

CO2 is not measured on the 10.1 s pair. Where it is measured, the Euro 4 1.8 MT is 175 g/km and the Euro 4 1.8 AT is 187 g/km (+12 g/km). Eco class is not measured on the same two versions that lack CO2.

There is no price in the data, so “what extra money buys” here means what the Automatic, 4 path buys versus Manual, 5: on the 110 kW 1.8 AT, it buys the same 10.1 s and 210 km/h as the lightest manual, at +30 kg kerb (1220 vs 1190). On the 103 kW 1.8 AT, it buys 11.4 s, 188 km/h, and higher consumption versus either 1.8 MT.

Dimensions, weight, reliability of the mass figures, and wheels

Ground clearance is 160 mm on all four. Tank is 52 L on all four. Front suspension is Independent, spring; rear is Semi-independent, springorts hélicoïdaux, sem; front brakes Ventilated disc; rear Disc — same labels on every version. Reliability of those chassis items as a buying split is zero: they do not differ in the data.

Kerb / gross / payload (gross − kerb) / kg per hp (kerb ÷ 140):

The 110 kW 1.8 AT is not the heaviest kerb, but it has the lowest gross mass (1695 kg) and the smallest payload (475 kg)75 kg less payload than the 550 kg manuals. The heaviest kerb is the slow 1.8 AT at 1240 kg, 50 kg above the lightest 1.8 MT.

Wheels: the 10.1 s 1.8 MT and the 110 kW 1.8 AT list 195/65 R15, 205/55 R16, 225/45 R17. The Euro 4 pair add 225/40 R18. If you want the 18-inch size in the catalogue, you are looking at the 10.2 s 1.8 MT or the 11.4 s 1.8 AT, not the 10.1 s pair.

Problems as a data topic: the data do not list faults, recalls, or failure rates. What is listed as uneven is measurement: CO2 and Euro 4 are not measured on two versions and are measured on two. Treat that as a documentation gap, not as proof that those two versions emit nothing.

Which version to choose

Choose the 1190 kg 1.8 MT if the numbers you care about are mass, payload, and the shortest 0–100. It is the lightest (1190 kg), tied for best payload (550 kg), lowest kg/hp (8.50), 10.1 s, 210 km/h, mixed 7.3. Trade-off: CO2 not measured, eco class not measured, no 225/40 R18 in the wheel list.

Choose the 1210 kg 1.8 MT if you want the manual with Euro 4 and a CO2 figure. Versus the other 1.8 MT you give up 0.1 s and 2 km/h, add 20 kg kerb, keep 9.9 / 5.8 / 7.3 and 550 kg payload, and gain CO2 175, Euro 4, and R18. That is the smaller of the two manual deltas.

Choose the 110 kW 1.8 AT if you want Automatic, 4 without giving up 10.1 s / 210 km/h / 7.3 mixed. You pay 30 kg versus the lightest manual and 75 kg less payload (475 vs 550). You get Direct injection (direct), 1798 cm³, and 110 kW. CO2 and eco class remain not measured; wheels stop at R17.

Choose the 1240 kg 1.8 AT only if Automatic, 4 plus Euro 4 / CO2 187 / R18 matters more than pace. It is the slowest (11.4 s), lowest top speed (188 km/h), thirstiest (7.8 mixed), heaviest kerb (1240 kg), and highest kg/hp (8.86). Versus the 110 kW 1.8 AT you lose 1.3 s, 22 km/h, and 0.5 L/100 km mixed, and you gain a measured eco class. Versus either 1.8 MT the automatic penalty is the same performance gap.

If the question is only “manual or automatic”: both manuals stay at 10.1–10.2 s and 208–210 km/h with mixed 7.3. Automatics split: one matches the fast manual’s 10.1 s and 210 km/h; the other does not. Do not treat “1.8 AT” as one car.

If the question is only “which generation”: there is one generation (2008–2009), Hatchback 3-door, four versions. The comparison is version-to-version, not generation-to-generation.

If the question is mpg / consumption: three versions share 9.9 / 5.8 / 7.3; only the 11.4 s 1.8 AT is worse. Specs for power are identical at 140 hp / 175 Nm; dimensions for clearance and tank do not change. The buyer’s lever is gearbox plus which 1.8 AT line, not a different engine family.