Pauls won a rain-shortened race at Pocono in their Porsche 935 JLP-3. Using the same 935, Junior would go on to win the Daytona finale. The Pauls started the 1982 season with back-to-back wins in the US classic endurance races, the 24 Hours of Daytona and the 12 Hours of Sebring. For the Daytona race, they were partnered by the 1977 Deutsche Rennsport Meisterschaft Champion, Rolf Stommelen. At Sebring, they overcame a gearbox failure in their 935 to win over the March 82G, led by the hard charging Bobby Rahal. The Pauls' second team car was also on the podium. More importantly, Paul Jr.'s win at Road Atlanta attracted Miller Brewing Company sponsorship for the remainder of the season. He then switched to the Lola to win at Laguna Seca. He teamed up again with his father in the 935 JLP-3 to win the Charlotte 500 km. Outpowered by championship rival, John Fitzpatrick in Porsche 935K4, Paul Jr. drove a new Porsche 935 JLP-4 to a debut victory at Brainerd. He scored another win at Portland, before swapping back to the older Porsche for the endurance races. He drove the JLP-3 with his father to win the Mosport 6 Hours. For the next endurance race, Paul was partnered with Mauricio de Narváez, and the pair finished second in Road America, behind the English pairing of Fitzpatrick and David Hobbs. He was re-united with his father at Road Atlanta for the 500 km event. Their last race together resulted in a second place in Pocono. Paul Jr. had clinched the IMSA GT Championship at the age of 22, becoming IMSA's youngest ever GTP champion. At the beginning of 1983 Paul Sr. shot federal witness Stephen Caron, who would testify about Paul's illegal activities. After finishing second in the Grand Prix of Miami in a JLP Racing Lola, the team would be dismantled following his father's disappearance. Paul Jr. was hired by Henn's Swap Shop Racing for both the 12 Hours of Sebring and the Road America Pabst 500 but these resulted in two DNFs. Away from IMSA, he tried his hand at CART racing, winning the 1983 Norton Michigan 500 in only his fourth Indycar start. After leading 66 of the 250 laps aboard the VDS Associates's Penske PC10, he passed Rick Mears on the last lap and took the checkered flag seconds later as Mears spun and crashed behind him.