An Incredible Assortment of Cars Featured at the 2023 WeatherTech International Challenge With Brian Redman Vintage Event


ELKHART LAKE, Wis., – July 17, 2023 – The WeatherTech International Challenge with Brian Redman at Road America concluded after three days of excellent vintage racing action, exhibitions, Concours awards, and activities for fans. The event has been heralded as one of the country’s most significant vintage racing events. 2023 ushered in the famed Kastner Cup as the featured marque. Renowned for its association with Triumph sports cars, this historic racing cup honors the incomparable legacy of the late R.W. “Kas” Kastner, who was instrumental in Triumph’s racing success from the late 1950s to the 1970s and beyond. Kastner’s profound influence lives on through his legendary Competition Preparation Manuals, considered essential reading for Triumph competitors to this day.

The cars, driven mainly by drivers undeniably passionate about their sport, were the main attraction. Unlike other events where spectators might be separated from stars who take the stage, car lovers milled through the paddock area, telling stories with owners and drivers and swapping insight with other enthusiasts.

The famed race car driver, Brian Redman, served as the Grand Marshall for the event and had nothing but praise for this mid-summer tradition. “This is a fantastic event,” commented Redman. He has been coming to the track almost every year since 1972 and cannot get enough. “This has become the finest road racing facility in North America.”

In all, another fabulous weekend of vintage racing is in the books at Road America, and the results for the Sunday races are as follows:


Group 11 – Pre War/Early Post War

Rex Barrett, Roselle, Ill., 1933 Ford Indy Special

Sanford Silverberg, Glendale, Wis., 1929 Ford Model A Speedster

Brad Tank, Winnetka, Ill., 1950 MG


Group 4 – Classic Monoposto

Joel Quadracci, Sussex Wis., 1967 Brabham BT29

Steve Grundahl, Blue Mounds, Wis., 1969 Brabham BT29

Pearce Raeder, River Forest, Ill., 1971 Louts 69b


Group 7b – Monoposto F70

Steve Brooks, London, 1982 Lotus 91

Bud Moeller, Melbourne Fla., 1982 Williams

Carlos Dequesada, Tampa, Fla., 1977 McLaren


Group 3 – Vintage GT/Sports

Brian Garcia, St Charles, Ill., 1966 Cheetah

Nathan Thompson, Dallas, 1963 Lotus

Damon Desantis, Plantation, Fla., 1969 Lola


Group 7a – Modern Formula/Monoposto Formula

Kirt Bennett, Clarkston, Mich., 1974 Lola

Paul Zazryn, King Creek, NSW, 1974 Lola

Bruce Leeson, Carmel, Calif, 1969 McLaren


Group 5 – CanAm/GTP/Historic Sports Racer

Gary Gould, Tulsa Okla., 1981 Frissbee GB-2

Joel Weinberger, Hinsdale, Ill., 1972 Chevron B21

Nick Griot, Tacoma, Wash., 1968 McLaren


Group 9 – Modern GT/American Stock

Pierce Marshall, Dallas, 2017 Chevrolet Corvette C7.R

Lance Wiskirchen, Scandinavia, Wis., 2001 Ford Mustang

Adam Rupp, Fond Du Lac, Wis., 1995 Ford Mustang


Group 13 – Kastner Cup

Tony Garmey, Buckley, Wash., 1967 Triumph TR250K

Dan Gehweiler, Cedarburg, Wis., 1969 Triumph GT6

Alex Amys, Superior, Wis., 1970 Triumph GT6


Group 6/14 – Classic Big-Bore Production/Trans Am

Todd Treffert, Sarasota, Fla., 1975 Porsche 911

Rick Mooney, Lake Oswego, Ore., 1968 Chevrolet Corvette

Clair Schwendeman, Dallas, 1968 Chevrolet Corvette


Group 1 – Modern Prototype

Robert Blain, Janesville, Wis., 2012 Honda ARX

Keith Frieser, Sturgeon County, AB, 2009 Zytek

Joel Quadracci, Sussex, Wis., 2013 Oreca


Group 2 – Vintage Production

Colin Comer, River Hills, Wis., 1958 Austin Healey Sprite

Robert Van Zeist, Brookfield, Wis., 1955 Porsche 356 Speedster

James Jackson, Edina Minn., 1964 Porsche 356SC


Group 10 – Post Historic GT/Production

Thomas Herb, Barrington, Ill., 2008 BMW M3

Jimmy McGlynn, Naples, Fla., 2005 Porsche 996

Michael Ketten, Milwaukee, Wis., 2002 Porsche 996


Group 8 – Historic/Post-Historic Production

George Balbach, Lake Bluff, Ill., 1966 Porsche 911

Rick Nichols, Littleton, Colo., 1971 Datsun 240Z

Craig Sutherland, Roeland Park, Kan., 1973 Porsche 911


Group 7 – Modern Formula/Monoposto Formula

Mark Brannon, Paradise Valley, Ariz., 1997 Lola T97

Bruce Hamilton, Monkton, Md., 2001 Swift

Travis Engen, Weston, Conn., 2001 Lola T97


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