Probably a scam . . . .
Using Auto Traders own search engine, here's what 2006 Nissan Frontiers are selling for in Quebec right now. The mileage would seem to suggest something in the area of $18,000 to $24,000 would be a more appropriate price.
http://www.canadatrader.com/result/r...ideoonly=False
You should query Auto Trader and see what they say . . . I don't imagine they like seeing their site used for this kind of thing. Or send a link to the RCMP fraud squad, since this would be a fraud crossing provincial boundaries. They'd probably be interested as well.
Cowperson