Like all the 2010 cars, the new Ferrari features a multitude of modifications. On the F10 (top half of drawing) the most dramatic difference is the longer wheelbase, which ensures the car can now fit a larger fuel tank and a longer and narrower gearbox. The car's rear axle is now some 20-22 cm further back (7). An old F60 front wing was fitted to the F10 at its launch, but the nosecone was longer (1). The front suspension (2) has been angled backwards to reduce the car's length, while the front tyres are 20 mm narrower (3). The team have fitted a small triangular fin in front of the sidepods (4) to better direct the airflow and have exploited the rules' maximum permitted width of 80 cm to fit in the longer and wider fuel tank (5). Although the engine itself is mounted around 15 cm further back, the exhaust exit is further forward (6).
Ferrari F60/F10 - exhaust comparison
To ensure the exhaust pipe vents as far away from the rear wing as possible, Ferrari have reverted to a solution they used five seasons ago on the F2005. In contrast to the design of last year's car (see main picture, black arrow), the pipes have been mounted so they'll vent nearer the front of the car, rather than the back (see inset, black arrow).
Ferrari F10 - angled engine mounting
To create more room for a larger double diffuser, the F10 has its engine is mounted at a 3.5 degree angle (1). As a result, the exhaust pipe vents are located nearer the front of the car (2) than before, creating more space for a large chamber on the central diffuser. Interestingly there is a historical precedent for this approach - back in 1970, Arrows designer Tony Southgate mounted the engine of the sophisticated A2 at an angle of four degrees (bottom drawing).
McLaren MP4-25 - new front wing
McLaren's new MP4-25 features a totally new front wing, although the endplates are derived from ones that the team often tested but never raced with during the 2009 season. Of particular interest is the nosecone splitter (see black arrow), which is similar to one used by Williams last year and is designed to better separate the airflow passing over and under the car.
McLaren MP4-25 - rear aero solutions
The rear of the new MP4-25 features various aerodynamic solutions that have been devised through wind-tunnel testing and on-track work. At first glance it's the car's long wheelbase, with its long and narrow gearbox, that catches the eye, but it's actually the airflow management at the back which is more unusual. Like the Red Bull, the exhaust exits have been moved towards the rear of the car (large red arrow), whilst air from the gearbox radiator, which has been cooled with the help of air carefully channelled through the airbox (blue arrow), is also utilised for aerodynamic benefit. Directed towards the top of the rear wing's lower section and the diffuser (small red arrows), it intentionally interferes with airflow over these parts at certain speeds, causing them to stall. Another change to the design of the MP4-25 is the unique central pillar (yellow area) on which the rear wing is mounted.
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