According to Hyundai, Fast And Furious producers initially wanted a Genesis Coupe for the film but never used it. Now the Korean company believes "another manufacturer blocked us." Who could the cock-blocking automaker be?

The debut of Fast And Furious is quickly approaching. Last year, we went on-set for this exclusive behind-the-scenes look at the vehicles starring in the fourth installment of this high octane and high cheese series.

Car: 1987 Buick Grand National GNX
Character: Domenic Toretto (Vin Diesel) And Crew
Engine: 3.8-Liter Turbo V6
Upgrades: MSD ignition, Turbonetics intercooler, T/A Performance cylinder heads, Wenco driveshaft, Cragar Soft 8 Black wheels

Car: Nissan GT-R (R34)
Character: Brian O'Conner (Paul Walker)
Engine: PB26
Upgrades: Turbonetics intercooler

Car: 1972 Gran Torino
Character: Fenix (Laz Alonso)
Engine: 429 CJ
Upgrades: Hurst shifter, Hays clutch, Hooker headers, K&N Filter, Coys C-67 Gun Metal wheels

Car: 2009 Subaru Impreza WRX STI
Character: Brian O'Conner (Paul Walker)
Engine: EJ257 Shortblock Turbo
Upgrades: Perrin intake, Veilside shifter, Remus exhaust/intake, Enkei NT03+M wheels

Car: 2001 BMW M5 (E39)
Character: Letty
Engine: S62 DOHC V8

Car: 1970 Dodge Charger
Character: Dominic Toretto (Vin Diesel)
Engine: 426 Hemi
Upgrades: BDS intake/injection, Coys C-5 wheels, Headman headers, Flowmaster mufflers, Hotchiks suspension, R/T body kit.

Car: 1970 Chevrolet Chevelle SS
Character: Dom Toretto (Vin Diesel)
Engine: 502 GM Performance V8
Upgrades: Holley carbs, NOS, ProCharger supercharger, Richmond 4-speed tranny, Hurst shifter, Morse muffler, Coys C-55 Gun Metal wheels

One of the best experiences we had visiting the set of Fast And Furious was chatting with the strange collection of car owners who volunteered their cars as extras in the film. Some had shipped their cars in from across the country for the chance to be in the film. One group, the Solstice guys, had an impromptu meeting …