5. The Rise of World Challenge: With the two major North American sports car series now becoming one, 2014 could be the year of opportunity for the Pirelli World Challenge. The SCCA-sanctioned series will, for the first time, allow full FIA GT3-spec cars, which has already gained a considerable amount of interest from new teams and drivers to the sprint-race championship. Look for a number of GT3 models to make their U.S. debuts next year, including the McLaren MP4-12C and Lamborghini Gallardo.
4. New LMP1 Regulations: A new era in prototype racing begins next year with the introduction of a fresh set of LMP1 regulations, which could transform racing as we know it. Top-line prototypes from Audi, Toyota, Porsche, as well as privateer entries, will compete under a new energy allocation ruleset, where a set amount of fuel is allowed to be used per lap. All factory teams must run at least one energy recovery system, while there are no restrictions on the size of an internal combustion engine. These technological advancements will no doubt be fascinating to watch over the course of the FIA World Endurance Championship season.FIA, IMSA, Rolex 24 at Daytona, Sports Cars, TUSC