Nowadays many manufacturers are following the trend of engine downsizing, replacing big powerful engines with smaller ones to lower CO2 emissions and to increase fuel efficiency. Audi replaced the RS5's V8 with a twin turbo V6, Volvo now uses a twin turbo charged 2.0 liter engine instead of the conventional inline-six engine. but is this a real problem?
Many car enthusiasts believe that engine downsizing is not advantageous, as some think that the Ferrari 488 does not sound better than its predecessor the 458, same is true for other cars. The other thing is, using a small engine means that you come short on power. some manufacturers solve this by depending on forced induction and complicated engineering. Most use turbo chargers as it makes the car more fuel efficient, and can also close the power gap, but then comes the issue of turbo lag. Turbo lag is when the turbo takes time to spool up and provide boost. Companies like Jaguar and Land Rover use superchargers, but superchargers use direct power from the engine thus decreases efficiency. So for many reasons engine downsizing is not a very good idea.
However, engine downsizing made a revolution in the car world, where companies battle for the best ideas to use less cylinders but produce more power. Engine downsizing took engineering to a whole other level, instead of just adding more cylinders for more power, engineers now how think more critically. The new Audi SQ7 has a V8 turbo diesel engine that replaced the V12 TDI of the old Q7. The new SQ7 then eliminated the turbo lag by propelling the turbines with an electric motor, brilliant right? Hybrid systems are other ways to increase power and efficiency. As a result, now hybrids are more common to help with power shortage. The McLaren P1, the Porsche 918 and the Honda NSX don't use large engines like the traditional supercars/ hypercars, but use electrical engines to increase power, and increase efficiency. Some new downsized engines do sound better too, take the new RS5 as an example.
THE BIGGER THE BETTER... NO! Always remember, the V8 Agera RS was much faster than a W16 Chiron.