The track complex was purchased by Montreal-based fashion mogul Lawrence Stroll in 2000, who tapped track architect Alan Wilson to redesign the circuit, with the aim of modernizing its safety feature in accordance with current FIA regulations. The resulting redevelopment forced the park to close for the entire 2000 and 2001 seasons.
A major overhaul of the circuit in 2004 allowed more domestic and continental sportscar races to be held. Pit road was lengthened and widened featuring a new pit exit, while the pit straight was widened to . A chicane was added in Turn 2, while Turn 6 and 10 were modified to create two separate circuits which could be run simultaneously. The signature hump was lowered for safety, while Namerow corner was modified for runoff.
On July 1, 2007, Mont-Tremblant hosted a round of the Champ Car World Series, marking the series' first race at the circuit since Indy cars competed there in 1967 and 1968, when Mario Andretti won all four races. The race featured many lead changes and ended in wet weather, with Robert Doornbos emerging victorious.
|Season||Date||Race||Winning Driver||Winning Team||Report|
|1970||September 20||Canadian Grand Prix||Jacky Ickx||Ferrari||Report|
|1968||September 22||Canadian Grand Prix||Denny Hulme||McLaren-Ford||Report|
|Series||Season||Date||Race||Winning Driver||Winning Team||Report|
|USAC Championship Car Series||1967||Mario Andretti|
|USAC Championship Car Series||1968||Mario Andretti|
|Champ Car World Series||2007||July 1||Mont-Tremblant Champ Car Grand Prix||Robert Doornbos||Minardi Team USA||Report|
|Champ Car World Series||2008||June 29||cancelled||N/A||n/a|