weight, thus being the heaviest of the entire race and can only have tanks capable of carrying 90 litres of fuel. Vehicles below this, can have a minimum weight limit of 1,150 kg and a 120-litre fuel tank. 991 & 997 Class Class 997 Porsche 997 Cup Cars* (models 2007..2013) Class 991 Porsche 991 Cup Cars* (models 2014..2017) D1 The first of the diesel powered-car classes, this class aims at drawing together an array of vehicles driven on diesel for the full duration of the race. D1 features vehicles with Engine displacements up to 2,000 cc, which is ideal for smaller-sized hatchback TDI vehicles. This is why the 2009 grid saw an array of European hatchbacks including the Volkswagen Scirocco R, SEAT León TDI and BMW 120d. D2 The D2 class caters for diesel-powered vehicles exceeding the limit of 2,000 cc in D1. Generally, mid-sized & full-sized cars occupy the grid. Turbocharging is permitted in this class but handicaps apply to higher displacement vehicles. For example, cars with 2,500 cc to 3,000 cc must meet the minimum limit of 1,200 kg while cars below that displacement have a minimum weight limit of 1,100 kg. A number of BMW 120d makes featured in the class in the 2009 race as well as a BMW 320d. SP1 The SP1 class is the first of the Special Cars class and houses silhouette petrol-driven racing cars which have a chassis modified from their production counterparts. SP1 sees a mix of uniquely designed vehicles built specifically for high-powered Touring car racing. The vehicles in this category often vary in great lengths in engine size, power and vehicle weight, therefore, vehicles who fit the Solution F category can have a minimum weight of just 950 kg and a 120-litre fuel tank. Other silhouette cars with engines up 3,200 cc of displacement can have a minimum weight of 975 kg and are restricted to a 100-litre fuel tank. Cars with 3,200 cc to 3,600 cc must have a weight of at least 1,050 kg and a fuel tank with a capacity of 100L. SP2 GT3-A This is a class reserved for FIA GT3 entrants whose vehicles surpass the 4,000 cc Engine displacement limit for the A6 cars and also for GT3 cars which have 6+ cylinders. SP3 GT4-A This is a class similar to the SP2 GT3-A category and it is reserved for FIA GT4-spec vehicles. There