Canada's Worst Driver 4 was the fourth season of the Canadian reality TV show Canada's Worst Driver, which aired on the Discovery Channel. As with previous years, eight people, nominated by their family or friends, enter the Driver Rehabilitation Centre to improve their driving skills. The focus of this season was on the Legal Consequences of Bad Driving. This year, the Driver Rehabilitation Centre is located at the old Guelph Reformatory Prison, an abandoned correctional facility in Guelph, Ontario that closed down in 2002 due to being too harsh. The initial drive started in Kitchener, Ontario and the final road test occurred in Toronto, Ontario.

Experts

Three experts return from Canada's Worst Driver 3, though Scott Marshall, head instructor for the first three seasons, is not among them. Cam Woolley is a legal expert who has been present in every season except the first and has seen the habits of Canadian drivers change drastically since 2000, with the most common offense having changed from DUI to distracted driving. He is a retired traffic sergeant who had a 25-year career with the Ontario Provincial Police (at the time of filming, Cam was still with the OPP) and now serves as the traffic expert on CP24 in Toronto. Philippe Létourneau is a high-performance driving instructor with the Jim Russell Racing School, having been also featured on Discovery's Star Racer series. He is also a lead driving instructor for BMW Driver Training and the "Ferrari Driving Experience" at the Mont Tremblant race track. Philippe has enjoyed a successful career with over 40 podium finishes in 120 race starts. Dr. Louisa Gembora is a psychologist who worked at the Hamilton Psychiatric Hospital in Hamilton, Ontario before moving on to private practice in 1994. She drives a race car in her spare time. Dan Bagyan is the new head instructor this season who is with Signature Driving School.

Canada's Worst Driver 4