Alfa Romeo 8C Competizione

Alfa Romeo 8C Competizione: Which Version Should You Buy?

Choosing between the Alfa Romeo 8C Competizione 4.7 AT and 4.7 TCT is mainly a choice between performance, transmission type, and everyday usability. Both Roadster versions have a 4,691 cc Gasoline V-shaped 8-cylinder engine producing 450 hp and 470 Nm, but the 4.7 TCT reaches 100 km/h 0.2 seconds sooner, has a 2 km/h higher top speed, and provides 41 mm more ground clearance.

Choosing between the Alfa Romeo 8C Competizione 4.7 AT and 4.7 TCT is mainly a choice between performance, transmission type, and everyday usability. Both Roadster versions have a 4,691 cc Gasoline V-shaped 8-cylinder engine producing 450 hp and 470 Nm, but the 4.7 TCT reaches 100 km/h 0.2 seconds sooner, has a 2 km/h higher top speed, and provides 41 mm more ground clearance. The 4.7 AT counters with an Automatic gearbox and a gross weight that is 100 kg lower. Price, reliability, interior, colors, sound, dimensions, and market availability are not measured in the supplied data, so they cannot determine the recommendation.

Alfa Romeo 8C Competizione generations and versions

The catalogue contains one Alfa Romeo 8C Competizione generation. The 1 generation ran from 2007 to 2010, used a Roadster body, and included two versions: 4.7 AT and 4.7 TCT. No separate restyling is listed.

The 4.7 TCT was produced from 2007 to 2009, while the 4.7 AT was produced from 2008 to 2010. These periods overlap, so model year alone does not identify the version. Buyers should confirm the exact modification name and gearbox rather than relying only on the year.

Alfa Romeo 8C Competizione engine specs

The two versions have identical headline engine output. Each uses a 4,691 cc Gasoline engine with 8 cylinders in a V-shaped layout, 4 valves per cylinder, Distributed injection (multi-point), and no boost. Both develop 450 hp at 7,000 rpm and 470 Nm at 4,750 rpm.

Based on the supplied displacement and power, both versions produce approximately 95.9 hp per litre. Their power and torque therefore provide no basis for choosing one over the other.

The listed engine location for 4.7 TCT is Front, longitudinal. Engine location for 4.7 AT is not measured. The 4.7 TCT has a bore and stroke of 92 × 88.2 and a compression ratio of 11; bore and stroke for 4.7 AT are not measured, while its compression ratio is 11.25. Both versions specify 98 fuel.

Alfa Romeo 8C Competizione performance and mpg

The 4.7 TCT has the stronger measured performance figures. It accelerates from 0 to 100 km/h in 4.2 seconds and reaches 292 km/h. The 4.7 AT takes 4.4 seconds to reach 100 km/h and has a 290 km/h top speed. Consequently, the 4.7 TCT is 0.2 seconds quicker to 100 km/h and 2 km/h faster at maximum speed.

Fuel consumption is not measured for either version, so an mpg comparison cannot be made. CO₂ output and environmental class are also not measured for both versions.

Alfa Romeo 8C Competizione weight, clearance, tank, and wheels

Both versions have a kerb weight of 1,585 kg. Dividing that figure by their identical 450 hp output gives approximately 3.52 kg per horsepower for either version. The power-to-weight calculation therefore produces a tie, despite the 4.7 TCT’s quicker measured acceleration.

The differences appear in gross weight and ground clearance. The 4.7 AT has a gross weight of 1,785 kg, compared with 1,885 kg for the 4.7 TCT. This makes the 4.7 AT’s gross figure 100 kg lower. Subtracting kerb weight from gross weight gives a 200 kg difference for the 4.7 AT and a 300 kg difference for the 4.7 TCT.

Ground clearance is 79 mm for 4.7 AT and 120 mm for 4.7 TCT, giving the 4.7 TCT an additional 41 mm. The 4.7 TCT also has a measured 80-liter tank and listed wheel sizes of 245/35 R20 and 285/35 R20. Tank capacity and wheel sizes for 4.7 AT are not measured.

Overall exterior dimensions are not measured for either version.

Suspension and brakes

Both 4.7 AT and 4.7 TCT have Independent, spring front and rear suspension. Both also use Ventilated disc front brakes.

Their listed rear brakes differ: 4.7 AT has Disc ventilated rear brakes, whereas 4.7 TCT has Disc rear brakes. The data does not provide brake dimensions or stopping-distance measurements, so no further braking-performance comparison is possible.

Which Alfa Romeo 8C Competizione version should you buy?

Choose 4.7 TCT if measured acceleration, top speed, or ground clearance is the priority. Against 4.7 AT, it is 0.2 seconds quicker from 0 to 100 km/h, 2 km/h faster at the top end, and offers 41 mm more clearance. Its 80-liter tank and wheel sizes are documented, which also gives buyers more complete catalogue information for those items. It uses a 6-speed Robotic gearbox.

Choose 4.7 AT if you specifically want the 6-speed Automatic gearbox or prefer the lower listed gross weight. It matches the 4.7 TCT’s 450 hp, 470 Nm, 4,691 cc displacement, 1,585 kg kerb weight, and approximately 95.9 hp per litre, while its gross weight is 100 kg lower. Its main numerical compromises are the 0.2-second slower 0–100 km/h time, the 2 km/h lower top speed, and the 41 mm lower ground clearance.

For a performance-led purchase, 4.7 TCT is the clearer choice because it improves both measured acceleration and top speed without increasing kerb weight or reducing engine output. For a buyer whose decision centers on an Automatic gearbox, 4.7 AT is the appropriate alternative.

No evidence-based recommendation can be made on price, original price, reliability, problems, fuel economy, interior, colors, sound, or current cars for sale in the USA, UK, Australia, or elsewhere: all of those details are not measured in the supplied catalogue data.