The Alfa Romeo Brera's engines were divided between direct-injection gasoline powerplants (JTS technology)
and common-rail turbodiesels with variable geometry (JTDM technology).
The origin of the JTS (Jet Thrust Stoichiometric) gasoline blocks traces back to the short-term industrial
partnership between the Fiat Group and General Motors. The four-cylinder engines (1.9 JTS and 2.2 JTS)
utilized blocks supplied by GM (from the Ecotec family) with chain-driven camshafts and continuous variation
on the intake and exhaust shafts. Similarly, the 3.2 V6 JTS engine block was cast in Australia by Holden (a
GM subsidiary at the time). However, Alfa Romeo's Italian engineers profoundly modified the 3.2-liter V6
engine. They created their own cylinder heads with direct gasoline injection, the TwinPhaser system for
camshaft variation, and redesigned intake and exhaust manifolds to give the engine the rasping sound and
sporty behavior typical of the brand's engineering.
In 2009, Alfa Romeo introduced the acclaimed 1750 TBi (1.75 Turbo) four-cylinder engine. With modern
turbocharging, direct injection, and variable valve timing, this smaller engine managed to deliver 200
horsepower and an excellent peak torque of 320 Nm right at 1,400 rpm, surpassing and retiring the old
naturally aspirated 2.2 JTS and considerably lightening the weight over the front axle. In the diesel
lineup, the highlight was the 2.4 JTDM inline five-cylinder engine, which evolved from 200 horsepower to 210
horsepower and achieved an impressive 440 Nm of torque in its final years of production.
The detailed specifications of each powertrain can be compared directly in the following table:
Technical Specifications of Alfa Romeo Brera Engines
| Engine |
Type |
Displacement |
Maximum Power |
Maximum Torque |
Production Years |
Transmissions |
Top Speed |
Acceleration (0 to 100 km/h) |
| 1.75 TBi |
I4 Turbo |
1,742 cc |
200 PS @ 5,000 rpm |
320 Nm @ 1,400 rpm |
2009 - 2010 |
6-spd Manual |
235 km/h |
7.7 s |
| 2.2 JTS |
I4 Naturally Aspirated |
2,198 cc |
185 PS @ 6,500 rpm |
230 Nm @ 4,500 rpm |
2005 - 2010 |
6-spd Manual / 6-spd Selespeed |
222 km/h (Selespeed) / 224 km/h (Manual) |
8.6 s |
| 3.2 V6 JTS Q4 |
V6 Naturally Aspirated (AWD) |
3,195 cc |
260 PS @ 6,300 rpm |
322 Nm @ 4,500 rpm |
2005 - 2010 |
6-spd Manual / 6-spd Q-Tronic |
240 km/h (Manual) / 244 km/h (Q-Tronic) |
6.8 s (Manual) / 7.0 s (Q-Tronic) |
| 3.2 V6 JTS FWD |
V6 Naturally Aspirated (FWD) |
3,195 cc |
260 PS @ 6,300 rpm |
322 Nm @ 4,500 rpm |
2008 - 2010 |
6-spd Manual |
250 km/h |
7.0 s |
| 2.0 JTDM |
I4 Turbo (Diesel) |
1,956 cc |
170 PS @ 4,000 rpm |
360 Nm @ 1,750 rpm |
2009 - 2010 |
6-spd Manual |
218 km/h |
8.8 s |
| 2.4 JTDM (200 PS) |
I5 Turbo (Diesel) |
2,387 cc |
200 PS @ 4,000 rpm |
400 Nm @ 2,000 rpm |
2005 - 2006 |
6-spd Manual / 6-spd Q-Tronic |
228 km/h (Manual) / 225 km/h (Q-Tronic) |
8.1 s (Manual) / 8.3 s (Q-Tronic) |
| 2.4 JTDM (210 PS) |
I5 Turbo (Diesel) |
2,387 cc |
210 PS @ 4,000 rpm |
400 Nm @ 1,500 rpm |
2007 - 2008 |
6-spd Manual |
230 km/h |
7.9 s |
| 2.4 JTDM (Evolved) |
I5 Turbo (Diesel) |
2,387 cc |
210 PS @ 4,000 rpm |
440 Nm @ 1,500 rpm |
2009 - 2010 |
6-spd Manual |
250 km/h |
7.2 s |
The available transmissions adapted to each version's purpose. Besides the traditional 6-speed manual
gearbox, the 2.2 JTS engine featured the automated robotic Selespeed option, which provided sequential
shifts on the lever or via paddles behind the steering wheel, and a purely automatic mode with a sport
button that reduced shift times by 20%. Meanwhile, the V6 engine and the 2.4 diesel line featured the
conventional 6-speed Q-Tronic automatic transmission, which offered the comfort of smooth shifts and
included specific "Sport" and "Winter" modes to aid in dynamic control on slippery surfaces.
The general dimensions of the vehicle and the gross weight variation by version are detailed in the charts
below, illustrating the impact of the different mechanical blocks and traction systems on the Type 939 body:
Dimensions and Physical Capacities of the Brera
| Dimension / Parameter |
Official Measurement |
| Length |
4,410 mm to 4,415 mm |
| Width |
1,830 mm |
| Height |
1,341 mm to 1,380 mm |
| Wheelbase |
2,528 mm to 2,530 mm |
| Trunk Capacity |
300 to 610 liters (with seats folded) |
| Fuel Tank Capacity |
70 liters (or 69 liters on the V6 version) |
Weight Comparison (Curb Weight)
| Powertrain and Drivetrain Version |
Official Weight |
| 1.75 TBi FWD |
1,420 kg |
| 2.2 JTS FWD |
1,445 kg (Manual) / 1,440 kg (Automatic) |
| 3.2 V6 JTS FWD |
1,515 kg |
| 3.2 V6 JTS Q4 (AWD) |
1,605 kg (Manual) / 1,625 kg (Automatic) |
| 3.2 V6 JTS Q4 (Japanese Homologation Weight) |
1,770 kg |