"Many safety and emission regulations have been altered to include them.
Fuel economy regs for them are different. As far as I know, they are still
not
included under CAFE (this is where the term CAFE Racer arose, underpowered
but highly stylized cars in the 70's, such as the Mustang II King Cobra),"
Actually, no. A Cafe Racer was a term for a performance motorcycle up through
the 60's.
Does anyone know where the term really comes from? I dont, but I know it
pre-dates the
70's - and I've never heard it in the context listed above.