Alpina C1

Which Alpina C1 version to choose

If the goal is the fastest measured sprint and the highest listed top speed, the second-generation Sedan 2.5 MT is the only version that reaches 190 hp, 7.2 s to 100 km/h, and 220 km/h. If the goal is the smaller 2316 cm³ six with 95 fuel listed, choose a 2.3 MT and then pick generation by body: Coupe in generation 1, Sedan in generation 2.

If the goal is the fastest measured sprint and the highest listed top speed, the second-generation Sedan 2.5 MT is the only version that reaches 190 hp, 7.2 s to 100 km/h, and 220 km/h. If the goal is the smaller 2316 cm³ six with 95 fuel listed, choose a 2.3 MT and then pick generation by body: Coupe in generation 1, Sedan in generation 2. Those two 2.3 MT cars share 170 hp and 125 kW; they do not share torque (210 Nm vs 225 Nm), peak-torque rpm (4500 vs 5000), 0–100 (7.9 s vs 7.8 s), top speed (208 km/h vs 213 km/h), or ground clearance (145 mm vs 125 mm).

Kerb weight, gross weight, tank size, wheel sizes, and fuel consumption are not measured on any version, so “weight per horsepower” and “mpg” cannot be ranked. Power per litre can: 2.5 MT at 190 hp from 2494 cm³ is 76.2 hp/L; both 2.3 MT versions at 170 hp from 2316 cm³ are 73.4 hp/L.

Alpina C1 2.3 vs 2.5 (second generation, E30-era Sedan)

Both second-generation versions are Sedan, RWD, 5-speed Manual, Gasoline, 6 cylinders Inline, boost No, Distributed injection (multi-point), independent spring suspension front and rear, Ventilated disc front brakes, Disc rear brakes, and 125 mm ground clearance. Production windows in the modification data both run 1983-01-01 to 1987-12-31; the generation window is 1983-08-01 to 1987-07-31.

What the 2.5 MT adds over the second-generation 2.3 MT:

The 20 hp step is larger in relative terms than the 10 Nm step: power rises 11.8%, torque only 4.4%, both at the same 5000 rpm torque peak. Peak power arrives 200 rpm earlier on the 2.5 MT (5800 vs 6000). The 0–100 gap of 0.6 s is 7.7% of the 2.3 MT’s 7.8 s. Top speed rises 3.3%. Displacement rises less than power (7.7% vs 11.8%), which is why specific output is higher on the 2.5 MT.

Fuel grade 95 is listed only on 2.3 MT. On 2.5 MT fuel is not measured — that is not a statement that it uses a different grade; the field is empty. City, highway, and combined consumption are not measured on either car. Tank, wheels, kerb weight, and gross weight are not measured on either car, so you cannot say the 2.5 MT is heavier or thirstier.

Buy the second-generation 2.5 MT when 190 hp, 235 Nm, 7.2 s, and 220 km/h are the ranking criteria. Buy the second-generation 2.3 MT when 2316 cm³, 170 hp, 95 fuel, and the same 125 mm Sedan chassis are enough; you give up 20 hp, 10 Nm, 0.6 s, and 7 km/h, and you keep the same gearbox, drive, boost, cylinder count, and layout.

Alpina C1 2.3 E21 Coupe vs 2.3 E30 Sedan (same name, two cars)

The catalogue uses the same modification name 2.3 MT twice. They are not the same specification.

First generation (1980-04-01 to 1983-07-31): Coupe, one version, 2.3 MT. Modification dates 1980-01-01 to 1983-12-31. 170 hp / 125 kW at 6000 rpm, 210 Nm at 4500 rpm, 2316 cm³, Gasoline, 6 Inline, boost No, Distributed injection (multi-point), 95 fuel, 7.9 s to 100 km/h, 208 km/h, Manual 5, RWD, 145 mm clearance.

Second generation (1983-08-01 to 1987-07-31): Sedan, 2.3 MT among two versions. 170 hp / 125 kW at 6000 rpm, 225 Nm at 5000 rpm, 2316 cm³, same fuel type, cylinders, layout, boost, injection, gearbox, drive, 95 fuel, 7.8 s, 213 km/h, 125 mm clearance.

Unchanged from generation-1 2.3 MT to generation-2 2.3 MT: 170 hp, 125 kW, 6000 rpm power peak, 2316 cm³, Gasoline, 6, Inline, No boost, Distributed injection (multi-point), 95, Manual, 5 gears, RWD, independent spring both ends, Ventilated disc front, Disc rear.

What generation 2 changed on the 2.3 MT:

• Body: Coupe → Sedan
• Torque: 210 Nm → 225 Nm (+15 Nm, +7.1%)
• Torque rpm: 4500 → 5000 (+500 rpm)
• 0–100: 7.9 s → 7.8 s (0.1 s quicker)
• Top speed: 208 km/h → 213 km/h (+5 km/h)
• Ground clearance: 145 mm → 125 mm (−20 mm)

Power did not rise. The second-generation 2.3 MT is not a more powerful 2.3; it is a 15 Nm, 5 km/h, 0.1 s, lower-ride Sedan with the same 170 hp. Specific output stays 73.4 hp/L. The 20 mm clearance cut is 13.8% of the first generation’s 145 mm.

Buy generation-1 2.3 MT when the Coupe body and 145 mm clearance matter more than the extra 15 Nm. Buy generation-2 2.3 MT when the Sedan body, 225 Nm, 213 km/h, and 125 mm ride height are the package, still at 170 hp.

Searches that pair “alpina c1 2.3 e21” with the first generation and “alpina c1 2.3 e30” with the second are pointing at this body split in the data: Coupe then Sedan. Chassis codes are not in the given figures; the catalogue fact is Coupe vs Sedan and the numbers above.

Alpina C1 2.3 first generation vs 2.5 second generation

This is the largest arithmetic gap in the model: different generation, different body, different displacement, different power.

From the first 2.3 MT to the 2.5 MT, torque rises more than it does between the two Sedans (+25 Nm vs +10 Nm) because the baseline is 210 Nm, not 225 Nm. Top speed rises 12 km/h versus 7 km/h against the later 2.3 MT. The sprint improvement is 0.7 s versus 0.6 s. Power per litre still moves from 73.4 to 76.2 hp/L.

Shared hardware labels: Gasoline, 6 Inline, boost No, Distributed injection (multi-point), Manual 5, RWD, independent spring, Ventilated disc front, Disc rear. Kerb weight is not measured on either, so the 20 hp cannot be turned into a power-to-weight ranking.

Engines and specs (all Alpina C1 versions)

Exact names as in the database. Two rows named 2.3 MT are split by generation and by the 210 Nm / 225 Nm torque figures.

Injection on all three: Distributed injection (multi-point). Fuel grade 95 on both 2.3 MT rows; not measured on 2.5 MT. Valves per cylinder, compression, bore and stroke, engine location: not measured on all three.

Alpina C1 specs: performance and economy

There is no mpg ranking. The only economy-related field that is filled is fuel grade 95 on the two 2.3 MT versions.

Order by 0–100: 2.5 MT 7.2 s, generation-2 2.3 MT 7.8 s, generation-1 2.3 MT 7.9 s. Order by top speed: 220, 213, 208 km/h — the same order. The 0.1 s between the two 2.3 MT cars is the smallest performance gap in the table; the 0.6–0.7 s from either 2.3 MT to the 2.5 MT is the one that actually separates the model.

Alpina C1 dimensions, ground clearance, weight

Wheel size queries (including C13-style wheel searches) cannot be answered from these figures: kolyosa is empty on every version. Weight per horsepower is not measurable. The only dimension that ranks versions is ground clearance: 145 mm on the Coupe 2.3 MT, 125 mm on both Sedans. The two second-generation cars do not differ on clearance.

Front and rear suspension labels are identical on all three: Independent, spring. Brakes are identical: Ventilated disc front, Disc rear. Those items do not decide a purchase between versions.

What extra displacement buys, and what it does not

On the second-generation Sedan, moving from 2.3 MT to 2.5 MT is +178 cm³, +20 hp, +10 Nm, −0.6 s, +7 km/h, same 125 mm, same Manual 5, same RWD. That is the entire measured “upgrade” inside one generation.

Staying on 2.3 MT and moving from generation 1 to generation 2 is +0 hp, +15 Nm, −0.1 s, +5 km/h, Coupe to Sedan, 145 mm to 125 mm. That is a body-and-torque change, not a power change.

There is no automatic, no other gear count, no other drive, and no boosted version in the data. Choosing “which C1” is therefore: Coupe 2.3 MT at 170 hp / 210 Nm / 145 mm; Sedan 2.3 MT at 170 hp / 225 Nm / 125 mm; or Sedan 2.5 MT at 190 hp / 235 Nm / 125 mm. Prices and cars for sale are not in this dataset and are not ranked here.