I wasn't worrying about cars, just about how perfect the road would have to be for riding the red one. Since it's just a dream road for me, then there would be no cars except those I get to have fun rocketing by or racing with. I found out recently that I don't even need to have pedals to be legal here, so all that dirty ugly chain and other related aerodynamic drags would have to come off in favor of a comfy and aero support for my legs and feet.
Docnjoj,
What are you talking about getting squashed? You ride a recumbent trike and can't really be seen much better. This thing screams that you provide it with the power it deserves, and not some 500-1000W deal that takes 5 weeks to get up to max speed. Properly rigged then you're the one dodging the cars as obstacles, not them having to see and dodge you. The difference isn't subtle, and is why I insist I'm safer than the slower than traffic guys. I certainly wouldn't ride along side a car with it, but I don't do that with my current bike which puts my eyes above typical driver eye level.
The only times I am the least bit concerned about cars seeing me is when they are entering from a side street or they're coming the opposite direction and turning left. I assume they don't see me until I have evidence that they do. The rest of the time they don't need to see me, and I assume they don't.