Fiat Seicento

Fiat Seicento: specs, engines, mpg, weight, and which version to choose

The Fiat Seicento is a Mini 3-doors city car sold under the Fiat name. In this catalogue the model covers 1 January 1998 to 31 December 2005. The data lists two production blocks: first generation (1998–2000) and the same generation after restyling (2000–2005). Body type is Mini 3-doors throughout.

The Fiat Seicento is a Mini 3-doors city car sold under the Fiat name. In this catalogue the model covers 1 January 1998 to 31 December 2005. The data lists two production blocks: first generation (1998–2000) and the same generation after restyling (2000–2005). Body type is Mini 3-doors throughout. Three versions appear by name: 0.9 MT and two 1.1 MT cars that must be kept separate because power peak, valves per cylinder, injection, consumption, tank size, and kerb weight differ. Every engine here is Gasoline, No boost, Inline 4 cylinders, Front, transverse, Manual 5 gears, FWD. Search names such as Sporting, Abarth, and Michael Schumacher edition are not versions in this dataset; only 0.9 MT and 1.1 MT are specified below.

Fiat Seicento generations

1 generation (1 January 1998 – 30 September 2000). Mini 3-doors. Two versions: 0.9 MT and 1.1 MT. 0.9 MT is the smaller engine: 899 cm³, 39 hp (29 kW) at 5500 rpm, 65 Nm at 3000 rpm, 4 valves per cylinder, Central injection (single-point or single- point), 18.0 s to 100 km/h, 140 km/h top speed, mixed consumption 6.1 l/100 km, 38 l tank, kerb weight 705 kg, gross 1150 kg. 1.1 MT of this block is 1108 cm³, 55 hp (40 kW) at 5000 rpm, 88 Nm at 2750 rpm, 2 valves per cylinder, Distributed injection (multi-point), compression ratio 9.6, bore × stroke 70 × 72, 14.5 s to 100 km/h, 150 km/h, mixed 6.2 l/100 km, 38 l tank, kerb 735 kg, gross 1200 kg. Ground clearance is 160 mm on both. Compression ratio and bore × stroke for 0.9 MT are not measured. Wheel sizes are not measured.

1 generation, restyling (1 October 2000 – 31 December 2005). Still Mini 3-doors, one version: 1.1 MT. Same 1108 cm³ and 55 hp (40 kW) as the earlier 1.1 MT, but peak power is listed at 5500 rpm rather than 5000 rpm, valves per cylinder are 4 rather than 2, injection is Central injection (single-point or single- point) rather than multi-point, 0–100 km/h is 14.2 s, mixed consumption 5.8 l/100 km, tank 35 l, kerb weight 810 kg, gross still 1200 kg. Compression ratio, bore × stroke, CO₂, eco class, and wheel sizes are not measured.

This catalogue therefore describes one generation of Fiat Seicento plus its restyling, not two unrelated models. Production in the data runs from 1998 through 2005.

Fiat Seicento specs and engine table

Engine size in this set is either 899 cm³ (0.9 MT) or 1108 cm³ (both 1.1 MT). Horsepower is 39 hp on 0.9 MT and 55 hp on both 1.1 MT. Layout is Front, transverse; cylinders 4, Inline; boost No; gearbox Manual 5; drive FWD; fuel 95.

0.9 MT engine: 39 hp is 16 hp less than either 1.1 MT (55 − 39). Torque 65 Nm is 23 Nm less than the 88 Nm of 1.1 MT. Displacement 899 cm³ versus 1108 cm³ is 209 cm³ smaller.

1.1 MT (1 generation) engine: 55 hp at 5000 rpm, 88 Nm at 2750 rpm, 1108 cm³, 2 valves per cylinder, multi-point injection, compression 9.6, bore × stroke 70 × 72. This is the only version here with those two geometry figures measured.

1.1 MT (restyling) engine: same 55 hp and 88 Nm and 1108 cm³, but 5500 rpm for peak power, 4 valves per cylinder, central injection. Compression ratio and bore × stroke are not measured.

Queries about Fiat Seicento engine swap, engine bay, engine mount, oil, engine number location, tuning, or a swap kit are not answered by this dataset: those items are not measured. Sporting, Abarth, and Schumacher horsepower are not in the data; the measured outputs are 39 hp and 55 hp only.

Fiat Seicento performance, mpg, and fuel consumption

0.9 MT: 0–100 km/h 18.0 s; top speed 140 km/h; city 7.9 l/100 km; highway 5.1; mixed 6.1. Slowest and lowest top speed in the set. Versus restyled 1.1 MT, 0–100 is 3.8 s slower (18.0 − 14.2) and top speed is 10 km/h lower (150 − 140). Mixed use is 0.3 l/100 km higher than restyled 1.1 MT (6.1 − 5.8) and 0.1 l/100 km lower than first-generation 1.1 MT (6.2 − 6.1).

1.1 MT (1 generation): 0–100 km/h 14.5 s; top speed 150 km/h; city 8.3; highway 4.7; mixed 6.2. Highest city and mixed figures in the set. Highway 4.7 l/100 km is the lowest highway number here (0.1 less than restyled 1.1 MT at 4.8, 0.4 less than 0.9 MT at 5.1). City 8.3 is 0.4 above 0.9 MT (7.9) and 0.8 above restyled 1.1 MT (7.5).

1.1 MT (restyling, including a 2002 model year inside 2000-10-01 – 2005-12-31): 0–100 km/h 14.2 s; top speed 150 km/h; city 7.5; highway 4.8; mixed 5.8. Fastest 0–100 (0.3 s quicker than the earlier 1.1 MT, 3.8 s quicker than 0.9 MT). Lowest city and mixed consumption. Same 150 km/h as the earlier 1.1 MT.

CO₂ and eco class are not measured on all three versions.

Fiat Seicento dimensions, size, and weight

Exterior length, width, height, and wheel sizes are not measured. What is measured is mass, clearance, and tank.

0.9 MT: kerb 705 kg; gross 1150 kg; ground clearance 160 mm; tank 38 l. Lightest kerb: 30 kg under first-generation 1.1 MT (735 − 705) and 105 kg under restyled 1.1 MT (810 − 705). Gross 1150 kg is 50 kg under both 1.1 MT cars (1200 − 1150). Payload implied by gross minus kerb is 445 kg (1150 − 705).

1.1 MT (1 generation): kerb 735 kg; gross 1200 kg; clearance 160 mm; tank 38 l. Payload 465 kg (1200 − 735). Same 38 l tank as 0.9 MT.

1.1 MT (restyling): kerb 810 kg; gross 1200 kg; clearance 160 mm; tank 35 l. Heaviest kerb: 75 kg above the earlier 1.1 MT (810 − 735) and 105 kg above 0.9 MT. Tank is 3 l smaller than the 38 l cars (38 − 35). Payload 390 kg (1200 − 810), 75 kg less than the earlier 1.1 MT (465 − 390).

Ground clearance is 160 mm on every version. Front suspension Independent, spring; rear Independent, spring. Front brakes Disc; rear Drum. Wheel sizes not measured.

Fiat Seicento problems and reliability

This dataset does not list failure rates, typical faults, or review scores. Common-problems and reliability searches therefore have not measured answers here: no defect list, no oil-spec table, no mount or engine-number location. Chassis pattern that is measured: Independent, spring at both ends, Disc front, Drum rear, FWD, Manual 5, No boost, Gasoline 95. Fiat Seicento versus Cinquecento is not compared: Cinquecento is not in this data.

Which Fiat Seicento version to choose

Choose only among 0.9 MT, 1.1 MT (1 generation), and 1.1 MT (1 generation, restyling). Sporting, Abarth, and Schumacher trims are not specified here.

Pick 0.9 MT if the priority is lowest kerb weight (705 kg) and the smallest engine (899 cm³, 39 hp, 65 Nm). Accept 18.0 s to 100 km/h, 140 km/h, mixed 6.1 l/100 km, and production ending 30 September 2000. Tank 38 l, clearance 160 mm, 4 valves per cylinder, central injection.

Pick 1.1 MT (1 generation) if you want 55 hp and 88 Nm with the only measured compression (9.6) and bore × stroke (70 × 72), multi-point injection, and 2 valves per cylinder. It is 30 kg heavier than 0.9 MT (735 vs 705), 0–100 is 3.5 s quicker (18.0 − 14.5), top speed 10 km/h higher, mixed 6.2 l/100 km (0.1 above 0.9 MT), city the highest at 8.3, highway the lowest at 4.7. Same 38 l tank. Years 1998-01-01 – 2000-09-30.

Pick 1.1 MT (restyling) if you need years into 2005 (including 2002) and the best measured 0–100 and mixed mpg in this set: 14.2 s, 5.8 l/100 km mixed, 7.5 city, still 150 km/h and 55 hp / 88 Nm / 1108 cm³. Trade-offs versus the earlier 1.1 MT: 75 kg more kerb (810 vs 735), 3 l less tank (35 vs 38), peak power at 5500 rpm not 5000, 4 valves per cylinder not 2, central injection not multi-point, compression and bore × stroke not measured.

Across all three: Mini 3-doors, Gasoline, 95, Inline 4, Front, transverse, No boost, Manual 5, FWD, 160 mm clearance, Independent, spring both axles, Disc / Drum. CO₂, eco class, and wheel sizes are not measured.