The highway is full of big cars going nowhere fast
And folks is smoking anything that'll burn
Some people wrap their lives around a cocktail glass
And you sit wondering
Maya has some wordplay with the fact that on a highway there are no fast cars. This is a metaphor that she uses to explain how people’s lives are moving by fast, but they are going  “nowhere”  or not being productive. 
 May also be criticism of the 9-5 working world which are the majority of cars on the highway and whose jobs may not be as important as they believe. 

Come And Be My Baby