David Coulthard takes a rapid rrun around the proposed circuit for next year's street New Jersey/New York grand prix in a Red Bull Formula One car.

Normally sensible Volvo has gone extreme in this video - seeing a slackline walker taking on a rope precariously hung between two trucks moving on a highway.

The New Zealand Herald Motorsport correspondent Eric Thompson chats with the legendary Bob McMurray to update what is happening in the world of motorsport.