This year's LA Design Challenge has chosen 'Motorsports 2025' as its theme, and we've already shown you Mitsubishi's entrant: the MMR25 Rally Racer. We're close enough to the show that the rest of the field has finally revealed itself and includes far out concepts from the likes of Audi, BMW, General Motors, Honda, Mazda, Mitsubishi, Mercedes-Benz, Toyota and Volkswagen. Follow the jump to check out high-res galleries of entrants like a baja racer with an aerial reconnaissance drone or a Le Mans racer with a robot co-pilot that looks like a cross between R2-D2 and Hal. Then there's the globe-trotting racer that can compete on land, air and water, and the Chaparral-inspired hybrid racer. They're all amazing ideas and show just how much imagination these designers keep bottled up between sketching the next-gen Camry and redesigning cupholders. Check out the full field after the jump and vote for your favorite in the poll below.

[Source: LA Auto Show]

Audi R25


Audi introduces the R25, the latest prototype in its legendary racecar lineup.

The inaugural Los Angeles round of the ALMS 2025 incorporates innovative features never previously seen in any form of motor sports, such as high-velocity banks and tunnels, which allow cars to race 'inverted' and the opportunity to pass anywhere with aerodynamic racecars. All top sections of the tunnels and banks are also WiTricity wireless electrical charging zones, which encourage the drivers to utilize these free energy zones instead of fuel stops.

The R25 is designed to utilize and excel in this new racing environment, with features such as:


The new Dynamic Space Frame, allowing much greater degree of flexibility, integration of circuits and rigidity
Algae bio fuel for endurance and electric motor capability through Wireless power transfer technology
Audi Design: Staying true to the 'Form is Function' philosophy, there is not an ounce of needless element in the R25, which incorporates advanced technique and efficient form management into one. The car also uses: active micro-control surfaces which optimize airflow during the race; Man Machine Interface, which inputs all vehicle data output into the driver's helmet visor; all-around vehicle dynamic sensors and integrated on-board HD cameras with real-time data links to allow for spectator interaction, allowing fans to virtually 'sit' and experience the race in any racecar through monitors and virtual reality booths.