Into the second year of the new 3-litre regulations, the initial entries closed with 109 applications – the biggest number in the past decade. However, after the requisite culling 60 cars were accepted, but a number of withdrawals meant only 51 practiced with non-starters reducing the final grid to only 45, the smallest field in the decade. After a dominant season to date, Porsche had already won the Sportscar Championship, and arrived with easily the biggest representation with 16 cars, a third of the field.