Modern Car Engines Pack More Power Despite Smaller Size
Carmakers have achieved significant horsepower gains in smaller, cleaner engines due to regulatory pressures, matching or exceeding the performance of iconic cars from decades past.
Contemporary car engines are significantly more powerful than their counterparts from 30 years ago, despite advancements in engine downsizing and emissions reduction. Data analysis reveals that today's average family car boasts the same power output as a high-performance hot hatch from the 1990s.
Analysis by Vehicle Data Global (VDG) shows a 28.9 percent increase in average engine power output over the last two decades. This surge in performance from smaller powertrains is largely attributed to manufacturers' efforts to comply with increasingly stringent environmental legislation on emissions.
Performance Gains in Everyday Vehicles
The Skoda Octavia, a practical family car, now offers horsepower equivalent to legendary 1990s hot hatches like the Vauxhall Astra GSi and Renault Clio Williams, despite having an engine that is 25 percent smaller. A Skoda Octavia 1.5 TSI e-ACT 150PS DSG mild hybrid, for instance, achieves this level of performance.
Another example is the Nissan Qashqai, a popular crossover. Its 1.3 DIG-T 158PS mild hybrid variant produces approximately 156 brake horsepower (bhp), surpassing the output of the classic six-cylinder, 2.5-litre Triumph TR6 PI from the early 1970s.
The Ford Puma, originally a compact coupe and now a small crossover, also demonstrates this trend. Its 1.0 EcoBoost 155PS mild hybrid model, equipped with a 999cc three-cylinder engine, delivers about 153bhp. This figure represents a 16 percent increase in power compared to the 1980s Ford Escort RS Turbo, which had a larger 1.6-litre engine.
Engine Downsizing and Efficiency Gains
Since 2005, the average engine capacity has decreased by 7.8 percent, falling from 1,771cc to 1,633cc, according to VDG calculations. Concurrently, the average power output per litre has risen by 42.9 percent to 69.1kW per litre. Over the past 20 years, the median engine size has dropped from 1,599cc to 1,498cc, while median power has increased from approximately 107bhp to 138bhp.
VDG identified that in 2005, only about 8,500 cars producing at least 134bhp from an engine of 1.5 litres or less were registered. Last year, this number surged to 444,000, representing an increase from 0.4 percent to 26.7 percent of all new registrations.
This engineering achievement is driven by a combination of turbocharging, which forces more compressed air into the combustion chamber, and hybrid technology, which adds power from electric motors. Ben Hermer, operations director at VDG, noted that the