I won't say its all fake, I'd say about 50/50 is. Its made for TV and hence is edited and shaped to what the producers want to show.
However a lot of the situations are similar to what happens in real life street racing. When I was active in the street racing scene, we used spotters with FRS radios, (before GMRS came out) We would block off side streets, and such.
Only real difference was our cars were slower, fastest car out was a low 10 second Vette, most cars were 13/14 second street cars. We almost never bet for money it was always a pride thing.
I have a great video of REAL racing, put together buy one of our guys back in the day.
http://captfiero.com/videos/misc_non_fiero/6th.mpg There is one tiny split second you see me in my 85GT Fiero. Unfortunately the local news got better footage of me racing than the video did. I was never formally charged as they could not prove it was me driving. However I did get a nasty letter from our insurance company.
The video is like 60mb is size, so it will take time to download or buffer. However its totally worth the wait, one of the best real street racing videos made in my opinion.
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857GT Part 85GT Part 87GT Part Caddy, 93 Eldorado 4.9, 5spd Dual O2 Custom Chip, Custom Exhaust. MSD Everything Now with Nitrous. Capt Fiero --- My Over View Cadero Pics For Sale $4000, Yellow 88GT 5spd Full Poly Suspension, Lowered 1/2" in front, Corner Carver.