The Tango microcar...

"1) Will it meet NTSC safety ratings?"

No, motorcycles are not required so (not even helmets where I live).
If you don't feel safe in a car, how about people riding a bike? Or
simply ride a bus.

"2) Will it meet insurance companies safety ratings. Crash tests?"

Same above.

"3) You won't get rid of the big lanes as your not gonna get rid of
Semi's and other trucks."

Safety would start with good driving practices and not based on size,
in which SUVs rule. LANE DISCIPLINE would be enforced and the CELL
PHONE would be punished as much as the bottle.

Drinking Coke is OK.