Discover the top 5 of the most efficient production engines in relation to their size, with more than 200 hp per liter. Ferrari, AMG, Bugatti, McLaren …
Records fall one after the other. By unveiling its new 296 GTB, Ferrari also presented the characteristics of its new twin-turbo V6. Without the intervention of the additional electric motor, this thermal unit develops 663 hp for less than 3-liters of displacement. Is 221 hp per 1,000 cc. This actually the most powerful engine in the world, in proportion to its displacement.
=> The secrets of the engine of the Ferrari 296 GTB
In doing so, the Maranello aluminum block dethrones the Mercedes-AMG 4-cylinder from the A 45 S. The German engine manufacturers have so far held the palm of the power / displacement ratio, with the staggering figure of 211 hp / liter on the thermal sports compact. The future C63 AMG will also be equipped with this electrified “four legs” to reach the bar of 550 hp.
A V6 open
Due to increasingly restrictive emissions standards, engine manufacturers of luxury brands are increasingly opting for compact and turbocharged V6s instead of the big V8s or the noble atmospheric V12s. The race for power only becomes more fierce among prestigious engine manufacturers, with the adoption of new technical solutions.
McLaren recently unveiled the engine driving its hybrid supercar named Artura. Like the Ferrari V6, the British engine opts for a very open angle (120 °) allowing a better packaging from the rear central part of the vehicle. It too works in concert with an electric motor, allowing engineers to focus on the power curve. Without the electric motor, the British block develops 585 hp for less than 3-liters of displacement. Another particularity of the M630: it is a “long race”, imposing a displacement speed of the pistons greater than 25 meters per second at 8,500 rpm!
Maserati also hit hard in the field with his new Nettuno. As with Ferrari or McLaren, it is a twin-turbo V6. But unlike them, the trident engine works alone – 100% thermal – on the new MC20. It also opts for a more traditional angle (90 °), facilitating temperature management and limiting vibrations.
The W16 is resisting
Exception to the rule of downsizing : the Titanic W16 8-liter Bugatti Chiron. On the Super Sport version of the Alsatian supercar, it peaks at 1,600 hp for 8-liters of displacement. Remember that this engine – descending from that of the Veyron – is fed by 4 turbochargers and has no less than 64 valves… Its very particular architecture couples two VR8 engines (the rows are offset by 15 °). An engineering feat that weighs around 400 kg against less than 250 for the new generation V6s.
Nota Bene. We have only taken into account the heat engines of production vehicles here. Some preparers or vehicles with very low production may display higher figures than those shown here.
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