What is the longest car that is street legal in the US/Canada?

Question

What is the longest car that is street legal in the US/Canada?

Answer 1

my 1st car was a 70 chrysler new yorker, 24 feet long

but i think limos are regulated to 52 feet or something like that..anything longer and they can traverse the roads and corners.

Answer 2

1975 Cadillac Fleetwood Seventy Five is the longest street legal car.  However, it is no longer in production.  The largest production vehicle overall however is the Ford F-350 Superduty at 261.8in in length.