I didn't get to try it much but going to CA one winter don't recall 70mph as much of a problem except for driving out of Palm Springs one morning. STRONG head wind and all I could do was 45mph! REALLY annoying. Much over 70 is pushing it a bit on a NA VW 1.5 or 1.6 though. 0-60 is 22 seconds so 70's probably over a minute. Loren