The legendary eight-litre W16 engine is the heart of the new 1,500 HP Chiron. To achieve the power boost of 25 percent compared with the predecessor Veyron, the engine was completely redesigned.
Greater use is made of lightweight materials such as titanium and carbon fibre. For example, the intake tube, the charge air system and the chain housing are all made of carbon fibre. The key factors in the increased power output are higher-performance turbochargers and duplex fuel injection with 32 injectors (versus 16 in the Veyron). In addition, the charge air cooling system has been improved. As a result, more than 60,000 litres of air per minute are pumped through the engine. The coolant pump is also a very high-performance unit. In one minute, it circulates 800 litres of water through the entire engine.
The engine is fitted with four larger, higher-performance turbochargers. They are operated in a two-stage configuration. The two-stage turbocharging system developed by Bugatti especially for this car is the outstanding technical feature of the Chiron powertrain. To ensure maximum acceleration from a standstill without the “turbo lag” feared by sports car drivers, the Chiron moves off the mark with only two turbochargers in operation. The other two units kick in at about 3,800 rpm. As a result, the two-stage turbocharging delivers huge torque starting at 2,000 rpm and a power output that can be controlled and dosed rather well.
Bugatti Chiron: Fuel consumption, l/100km: 35.2 in urban areas / 15.2 in extra urban areas / 22.5 combined; combined CO2 emissions g/km: 516; efficiency class: G
Fuel consumption, CO2 emission figures and efficiency classes given in ranges depend on the tire/wheel sets used.
More information about official fuel consumption figures and official specific CO2 emissions of new motor vehicles is available in the ‘Guidelines on fuel consumption, CO2 emissions and electric power consumption of new motor vehicles’ which are available free from all retail outlets and from DAT Deutsche Automobil Treuhand GmbH, Helmuth-Hirth-Str. 1, 73760 Ostfildern-Scharnhausen, Germany (www.dat.de).
The fuel consumption and CO2 emissions of a motor vehicle, and deviations from the stated values, depend not only on the efficient use of fuel by the vehicle and other factors (e.g. the choice of wheels and tyres), but are also influenced by driving style and other non-technical factors.