The Lancia Thesis 2.4 20V, produced from March 2002 to September 2007, represented Lancia’s flagship sedan during that period. Positioned as a luxury vehicle, the Thesis aimed to compete with established German and Scandinavian brands. This particular variant, equipped with the 2.4-liter inline-five engine producing 170 horsepower, served as a mid-range offering within the Thesis lineup, slotting between the lower-powered 2.0-liter models and the higher-performance 2.8-liter V6. The Thesis was built on the 841 platform, shared with other Fiat Group vehicles, but distinguished itself through its unique styling and focus on comfort and refinement.
Technical Specifications
| Brand | Lancia |
| Model | Thesis |
| Generation | Thesis |
| Type (Engine) | 2.4 20V (170 Hp) |
| Start of production | March, 2002 |
| End of production | September, 2007 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 15.2 l/100 km (15.5 US mpg, 18.6 UK mpg, 6.6 km/l) |
| Fuel consumption (extra urban) | 8.4 l/100 km (28 US mpg, 33.6 UK mpg, 11.9 km/l) |
| Fuel consumption (combined) | 10.9 l/100 km (21.6 US mpg, 25.9 UK mpg, 9.2 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 9.5 sec |
| Acceleration 0 – 62 mph | 9.5 sec |
| Acceleration 0 – 60 mph | 9 sec |
| Maximum speed | 217 km/h (134.84 mph) |
| Weight-to-power ratio | 9.9 kg/Hp, 101.2 Hp/tonne |
| Weight-to-torque ratio | 7.4 kg/Nm, 134.5 Nm/tonne |
| Power | 170 Hp @ 6000 rpm |
| Power per litre | 69.5 Hp/l |
| Torque | 226 Nm @ 3500 rpm (166.69 lb.-ft. @ 3500 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | 841 D.000 |
| Engine displacement | 2446 cm3 (149.26 cu. in.) |
| Number of cylinders | 5 |
| Engine configuration | Inline |
| Cylinder Bore | 83 mm (3.27 in.) |
| Piston Stroke | 90.4 mm (3.56 in.) |
| Compression ratio | 10.3:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC |
| Engine oil capacity | 5.5 l (5.81 US qt | 4.84 UK qt) |
| Coolant | 8.6 l (9.09 US qt | 7.57 UK qt) |
| Kerb Weight | 1680 kg (3703.77 lbs.) |
| Max. weight | 2190 kg (4828.12 lbs.) |
| Max load | 510 kg (1124.36 lbs.) |
| Trunk (boot) space – minimum | 480 l (16.95 cu. ft.) |
| Fuel tank capacity | 75 l (19.81 US gal | 16.5 UK gal) |
| Length | 4890 mm (192.52 in.) |
| Width | 1830 mm (72.05 in.) |
| Height | 1470 mm (57.87 in.) |
| Wheelbase | 2805 mm (110.43 in.) |
| Front track | 1570 mm (61.81 in.) |
| Rear (Back) track | 1540 mm (60.63 in.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the front wheels of the vehicle. |
| Drive wheel | Front wheel drive |
| Number of gears and type of gearbox | 6 gears, manual transmission |
| Front suspension | Spring Strut |
| Rear suspension | Coil spring |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size | 205/60 R15 |
| Wheel rims size | 15 |
Powertrain & Engine Architecture
The heart of the Thesis 2.4 20V is the 841 D.000 engine, a 2.4-liter inline-five cylinder gasoline engine. This engine is notable for its unusual configuration, offering a compromise between the smoothness of a six-cylinder and the compactness of a four-cylinder. It features a double overhead camshaft (DOHC) valvetrain with four valves per cylinder, and utilizes a multi-port fuel injection system. The engine’s 170 horsepower output at 6000 rpm and 226 Nm (166.69 lb-ft) of torque at 3500 rpm provided adequate performance for comfortable cruising. The engine’s design prioritized refinement and low-end torque over outright power. The Thesis 2.4 20V was exclusively offered with a 6-speed manual transmission, designed to maximize the engine’s efficiency and provide a more engaging driving experience.
Driving Characteristics
The Thesis 2.4 20V offered a comfortable and refined driving experience. While not a sports sedan, the 170 hp engine and 6-speed manual transmission provided sufficient power for everyday driving and highway overtaking. The inline-five engine delivered a unique exhaust note and a relatively smooth power delivery. The 6-speed gearbox allowed drivers to keep the engine in its optimal power band, enhancing responsiveness. Compared to the 2.0-liter models, the 2.4 offered noticeably more power and torque, resulting in quicker acceleration and improved highway performance. However, it didn’t match the outright performance of the 2.8-liter V6, which was geared towards a more enthusiastic driver. The front-wheel-drive configuration provided predictable handling, but lacked the dynamic capabilities of rear-wheel-drive alternatives.
Equipment & Trim Levels
The Thesis 2.4 20V came standard with a generous array of features, reflecting its luxury positioning. Standard equipment included automatic climate control, power windows and mirrors, central locking, and a high-quality audio system. Interior upholstery was typically cloth or leather, with wood trim accents. Optional extras included a sunroof, navigation system, premium sound system, and heated seats. The Thesis prioritized passenger comfort, offering spacious seating and a well-appointed interior. The dashboard layout was elegant and functional, with a focus on ease of use.
Chassis & Braking
The Thesis 2.4 20V utilized a conventional front-engine, front-wheel-drive layout. Suspension consisted of a spring strut setup at the front and a coil spring arrangement at the rear. The braking system featured ventilated discs on all four wheels, providing adequate stopping power. Anti-lock Braking System (ABS) was standard. The chassis was designed to prioritize ride comfort and stability, rather than sporty handling. The suspension tuning was relatively soft, absorbing bumps and imperfections in the road surface effectively. The steering was hydraulic, providing a light and easy driving experience.
Market Reception & Comparison
The Lancia Thesis, in general, received mixed reviews. Critics praised its elegant styling, comfortable interior, and generous equipment levels. However, it was often criticized for its relatively high price, limited brand recognition outside of Italy, and somewhat uninspired driving dynamics. The 2.4 20V variant offered a good balance between performance and fuel economy, making it a popular choice among buyers seeking a comfortable and refined luxury sedan. Fuel economy figures were comparable to other vehicles in its class, averaging around 21.6 US mpg in combined driving. Reliability was generally good, although some owners reported issues with electrical components. Compared to its German rivals, the Thesis offered a more distinctive design and a more affordable price point, but lacked the same level of brand prestige.
Legacy
The Lancia Thesis, while not a commercial success on a global scale, remains a fondly remembered vehicle among Lancia enthusiasts. The 2.4 20V powertrain has proven to be relatively durable, with many examples still on the road today. The inline-five engine, in particular, is appreciated for its unique character and smooth operation. In the used car market, the Thesis 2.4 20V represents a relatively affordable entry point into the world of Italian luxury. Its distinctive styling and comfortable interior continue to appeal to buyers seeking a unique and refined driving experience. However, potential buyers should be aware of the potential for age-related issues, such as electrical problems and worn suspension components.
