Starting straight, single, then Open

Is there a reason I see many tracks start with individual straight yellow runs before opening to a wide track to the finish? I would like to hear you thoughts.
Discussion
Like the man said, 3D did it first, but there's a reason.
Going straight from the start line into a open-lane track allows the cars to veer back and forth immediately, causing a lot of chaos and killing forward momentum. The idea behind the single lanes to open track is for the cars to get up to speed before they go to open track - otherwise you have a lot of crashes and DNF's way further up the track.
Straight and single is how most of us like them.
As SpyDude says, it does reduce the crashes out of the gate. On top of that, it allows you to run chicanes, jumps etc that are far more difficult with open track.
Just for the inconsequential record, DCR was running single lanes into open track many years before 3D started. But I agree with motivations above, fast moving cars have better stability than slower moving cars because each spinning wheel is essentially a gyroscope (albeit w/questionable efficiency). The more RPMs (and mass) that a spinning wheels has, the more nanograms of influence it will have on attitude of the chassis.
GspeedR
- Is adding weight to the wheels a good idea ? — Deedose
- No adding weight to wheels — CrazyEights
- I added weight to the wheels on my entry for the Ram Rod 400 over at Monster Motorsports. Let’s just say it didn’t go over real well …….. — SpyDude
- hmm, but OF COURSE YOU CAN ADD WEIGHT TO THE CARS THEMSELVES!!! — GT_Diecast
Thank you, all makes sense :)
I do it b/c it's a cheap way to get more straight track......the crash racers sets have tons of turns but only a few straight pieces
3D did it, so everyone followed suit