3 493 cm³
Alessandro Nannini (I)
The Benetton B188 is a Formula One racing car designed by Rory Byrne and raced by Benetton team in the 1988 Formula One season and in the first half of the 1989 Formula One season. Dating back to when the team started as Toleman in 1981, the B188 was the first car produced by the team not to be powered by a turbocharged engine.
Benetton was effectively the Ford works team as they had exclusive use of the 3.5L Ford DFR V8 engine for 1988 where others running Ford-Cosworth power had to make do with 1987's DFZ engine. When the FIA announced that turbos would be banned after 1988, Ford made the decision to halt development of the V6 Ford TEC turbocharged engine used in the B188's predecessor the B187, and instead concentrated on the development of an engine for the new 3.5L rules. As Benetton were under contract to run the Ford engine (a contract they did not wish to break), the teams designers were forced to design a car to take the naturally aspirated V8 rather than the turbocharged V6. Despite this, the B188 was visually similar to the B187 it replaced, though it featured a bulkier engine cover to house both the larger engine and a larger fuel tank, as well as featuring larger twin air intakes (located above each sidepod, rather than above the drivers head as would become the norm). The B188 also featured a longer, sleeker looking nose section to take advantage of the rule that would come in from 1989 that meant the drivers feet had to be behind the front axle line.
The DFR, a development of the Cosworth DFV that had been introduced to F1 by Lotus in 1967, developed approximately 620 bhp (462 kW; 629 PS), the most powerful 'atmo' engine of the season. This compared to the 650 bhp (485 kW; 659 PS) of the turbocharged Honda and Ferrari engines and only 590 bhp (440 kW; 598 PS) for the older DFZ V8. However, where as the turbo powered cars were restricted to a fuel tank size of 150 litres, the atmospheric cars fuel tank size was able to be much larger. The B188 reportedly had the largest fuel tank on the grid at 215 litres.