Grand Prix of Toronto

The Ontario Honda Dealers Indy Toronto was an annual Indy car race, held in Toronto, Ontario, Canada. Originally known as the Molson Indy Toronto, it was part of the Championship Auto Racing Teams (CART) series from 1986 to 2003, and then the Champ Car World Series (CCWS) from 2004 to 2007. After a one-year hiatus, it was part of the IndyCar Series schedule since 2009, but was removed after the 2025 season, as the race would shift over to Downtown Markham for the Grand Prix of Markham.

The race took place on a 2.874 km (1.786 mi), 11 turn, temporary street circuit through Exhibition Place and on Lake Shore Boulevard.

It was IndyCar's second-longest running street race, only behind the Grand Prix of Long Beach and the third oldest race on the schedule (tied with the Indy 200 at Mid-Ohio) in terms of number of races run. The Toronto Indy was one of eight Canadian circuits to have held an Indy car race, the others being Canadian Tire Motorsport Park, Mont-Tremblant, Sanair, Montreal, Vancouver, Edmonton, and Markham.

Motorsport and automobile demonstrations has a history at Exhibition Place going back over 100 years. Automotive shows, displays, races and driving demonstrations have taken place on the grounds since the invention of the automobile, including the first appearance of an indy car, the 1916 Indianapolis 500 winning Peugeot during the 1918 Canadian National Exhibition.

From 1952 until 1966 the grandstand hosted stock car racing on a paved quarter mile circuit on Friday nights and Sunday afternoons, hosting crowds upwards of 20,000 often broadcast live on CBC in Toronto. In 1958 the venue hosted a NASCAR Cup Series race, the Jim Mideon 500. The race was the first of Richard Petty's 1,184 starts in NASCAR and was won by his father Lee Petty.

Following the 1977 Formula One Canadian Grand Prix, Labatt, the sponsor who held the rights to F1 racing in Canada at the time, as well as the owners of Mosport Park revived the proposal to move the race to Exhibition Place after the FIA deemed Mosport as an unsuitable host facility going forward. Toronto city council turned down the proposal by a margin of two votes and within a few hours, Montreal mayor Jean Drapeau had negotiated with Labatt to move the race permanently to Montreal.

In 1984, Molson Breweries in-house promotional division, Molstar Sports & Entertainment acquired the rights to CART sanctioned IndyCar races in Canada and ran the first Molson Indy at the Sanair Speedway outside Montreal. The tight tri-oval was unpopular with the CART teams in part due to a severe injury to Rick Mears during the first event. In the spring of 1985, Molson revived the idea of a street circuit through Exhibition Place in Toronto for a third time. Toronto City Council approved the race by two votes in July 1985 for the race to be held the following year.

The first Molson Indy Toronto was won by Bobby Rahal on July 20, 1986. The event quickly became Canada's second largest annual sporting event, eclipsed only by the Canadian Grand Prix in Montreal, with three-day attendance figures routinely around 170,000 people.