Electrical assistance is integrated into the Puretech motor design
Stellantis, the automotive giant, is making a significant stride in expanding its range of electrified engines. The company is set to introduce standalone full hybrid (HEV) technology, marking a shift from its previous strategies that had gaps, particularly in the area of classic hybrid drive technology.
The cornerstone of this new development is the 1.2-liter Puretech three-cylinder engine, which has been notorious for its high repair costs due to its oil-bath timing belt. Stellantis is overhauling this engine, combining it with a dual-clutch transmission unit (DT2) for hybrid operation. This revised engine, along with the DT2's integrated 21 kW electric motor, will be the heart of the new powertrain technology.
The initial use of this technology will be in Peugeot models, including updated versions of the 3008 and 508, as well as the new generation of the 308. Other brands of the company could follow suit, adopting the new technology in their respective models.
The DT2 unit, developed by Punch Powertrain, a company fully acquired by Stellantis in early 2025, is already in use in Stellantis' current range of electrified engines, which consists of a 1.2-liter mild hybrid and a 1.6-liter plug-in hybrid. The new powertrain technology is planned to be expanded to other models in the long term.
In the hybrid version, the DT2 unit brings the PureTech to around 180 PS total power. This expansion of Stellantis' electrified engines is expected to result in noticeably lower fuel consumption values compared to existing internal combustion engines. The electric assistance in the hybrid version also contributes to a significant improvement in efficiency.
Interestingly, this shift towards hybrid technology mirrors Toyota's long-standing priority on hybrid drive technology, a priority now being adopted by European manufacturers, including Stellantis and Volkswagen.
However, Stellantis' small cars, the 208 and 2008, will remain unaffected and will only be offered electrically from 2027 onwards. This decision is likely driven by the company's commitment to electric-only production for these models.
The engine production in Tychy (Poland) and the transmission plants in Trémery and Mirafiori will be fully utilized by the new powertrain. This move not only signifies a step forward in Stellantis' electrification strategy but also ensures the continued productivity of these plants.
The revised 1.2-liter Puretech three-cylinder engine with DT2 dual-clutch transmission and electric motor will be used by Stellantis in its future versions of B- and C-segment models for the European market. This move positions Stellantis to compete more effectively with rivals like Renault and Toyota in the hybrid market.
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