There's a small problem with this road. It can't be used because it slows down some cars and some other cars are unaffected. It sounds stupid, but R* made zones on which your car gets slower. I'm not sure what it depends on (I tested changing handling but the problem was the same, on other cars it was still nearly nonexistent).
Here are a few areas affected by this: http://i.imgur.com/9N9CMNW.jpg
It's the reason why the SF highway drag was shortened.
Here are a few areas affected by this: http://i.imgur.com/9N9CMNW.jpg
It's the reason why the SF highway drag was shortened.