Brilliance M3 (BC3)

Brilliance M3 (BC3): Which Version Should You Choose?

The Brilliance M3 (BC3) is available in three listed configurations, all from its sole Coupe generation produced from 2007 to 2011. The main decision is between the 170 hp Turbo engine and the 136 hp naturally aspirated engine, followed by a choice of Manual or Automatic transmission for the more powerful unit.

The Brilliance M3 (BC3) is available in three listed configurations, all from its sole Coupe generation produced from 2007 to 2011. The main decision is between the 170 hp Turbo engine and the 136 hp naturally aspirated engine, followed by a choice of Manual or Automatic transmission for the more powerful unit. Every version uses Gasoline, has FWD, and accelerates from 0 to 100 km/h in 9.7 seconds according to the supplied data. The 170 hp 1.8 MT offers the strongest combination of documented performance and specification detail; the 170 hp 1.8 AT provides the only Automatic option; and the 136 hp 1.8 MT is the naturally aspirated alternative.

Brilliance M3 (BC3) generations and versions

The Brilliance M3 (BC3) has one generation rather than several generations to compare. The 1 generation ran from 2007 to 2011 as a Coupe and contains three versions. Consequently, the buying decision is entirely between different engines and gearboxes within the same generation; the supplied data does not identify a restyling or a later generation with mechanical changes.

Two versions share the exact database name 1.8 MT, so power is essential when distinguishing them: one 1.8 MT produces 170 hp, while the other 1.8 MT produces 136 hp. The remaining version is the 170 hp 1.8 AT.

Engine and specs comparison

The two 170 hp versions use the same 1793 cc Turbo engine specification. Both deliver 235 Nm at 2000 rpm and 170 hp at 5500 rpm, so their principal listed difference is the transmission: a 5-speed Manual in 1.8 MT (170 hp) and a 4-speed Automatic in 1.8 AT (170 hp).

The 1.8 MT (136 hp) has a slightly larger 1834 cc displacement but no boost. It produces 136 hp at 6500 rpm and 165 Nm at 5000 rpm. Compared with this version, either Turbo model supplies 34 hp more and 70 Nm more, despite having 41 cc less displacement. The Turbo engine also reaches its listed torque peak 3000 rpm earlier.

Power per litre further separates the engines. The 1793 cc Turbo specification produces approximately 94.8 hp per litre, whereas the 1834 cc naturally aspirated specification produces approximately 74.2 hp per litre. The difference is about 20.6 hp per litre in favour of the Turbo versions.

All three engines use Distributed injection (multi-point), four Inline cylinders, and four valves per cylinder. Compression ratio is not measured for either 170 hp version. The 1.8 MT (136 hp) has a measured compression ratio of 9.5.

Performance and economy

The supplied acceleration figure does not create a ranking: every version reaches 100 km/h in 9.7 seconds. Both Manual versions have a measured top speed of 210 km/h. Top speed for 1.8 AT (170 hp) is not measured, so it cannot be assumed to match the Manual cars even though its engine power and torque figures are identical to those of 1.8 MT (170 hp).

City, highway, and combined fuel consumption are not measured for any version. CO₂ output and emissions class are also not measured across the range. There is therefore no numerical basis in the supplied data for calling either engine or either transmission more economical.

Dimensions, weight, and chassis specs

Both Manual versions have a documented kerb weight of 1452 kg. On that basis, 1.8 MT (170 hp) carries approximately 8.5 kg per horsepower, while 1.8 MT (136 hp) carries approximately 10.7 kg per horsepower. The Turbo Manual therefore has about 2.1 kg less weight to move for each horsepower. Kerb weight for 1.8 AT (170 hp) is not measured, so its weight-to-power ratio cannot be calculated.

Gross weight is not measured for any version, and wheel sizes are not measured. All three configurations have 130 mm of ground clearance and a 74 L fuel tank.

The chassis specification is shared across the range: Independent, spring suspension is fitted at both ends, with Ventilated disc front brakes and Disc rear brakes. The supplied data provides no version-specific suspension or brake upgrade.

Which Brilliance M3 (BC3) version should you buy?

Choose 1.8 MT (170 hp) if the priority is the strongest all-round specification supported by the available numbers. It combines 170 hp, 235 Nm, a 5-speed Manual, a measured 210 km/h top speed, and a documented 1452 kg kerb weight. Compared with 1.8 MT (136 hp), it gains 34 hp and 70 Nm while retaining the same measured kerb weight, acceleration time, top speed, fuel-tank capacity, ground clearance, suspension, and brake specification. It also has the better calculated power-to-weight figure of approximately 8.5 kg per horsepower.

Choose 1.8 AT (170 hp) when Automatic transmission is the deciding requirement. It matches 1.8 MT (170 hp) for displacement, power, torque, boost, fuel, cylinder configuration, drive, and 9.7-second acceleration, but replaces the 5-speed Manual with a 4-speed Automatic. Its top speed and kerb weight are not measured, so the data cannot establish whether selecting the Automatic affects maximum speed or weight.

Choose 1.8 MT (136 hp) if a naturally aspirated engine is specifically preferred. Its engine has no boost, develops 136 hp and 165 Nm, and is paired with a 5-speed Manual. It nevertheless shares the measured 9.7-second acceleration and 210 km/h top speed of 1.8 MT (170 hp). Fuel-consumption figures are not measured, however, so the lower output cannot be presented as evidence of lower running costs or better economy.

There is no price data, so the extra money associated with any version—if there is a price difference at all—is not measured. Numerically, the clearest upgrade is from 1.8 MT (136 hp) to either 170 hp Turbo version: the buyer receives 25% more horsepower and about 42.4% more torque. Between the two Turbo models, the decision is simpler: 1.8 MT (170 hp) for the 5-speed Manual and the more complete documented performance record, or 1.8 AT (170 hp) for the range’s only 4-speed Automatic.