Images the Detroit Grand Prix round of the 2017 IMSA WeatherTech SportsCar Championship.

A IMSA GTV (Lamborghini Gallardo LP560-4) at the Essen Motorshow.

© Dennis Matthies

My photographs are copyrighted and may not be altered, printed, published in any media and/or format, or re-posted in other websites/blogs.

Audi IMSA rally toy replica

Porsche 935 at Daytona - 1985.

IMSA " Mosport

Weather Tech Raceway 9-13-15-19

IMSA Weathertech Sahlen's six hours of the Glen at Watkins Glen on July 3rd 2016

Porsche 962 at Daytona

Peter Gregg's Porsche at Daytona - 1992.

Weather Tech Raceway 9-13-15-19

Weather Tech Raceway 9-13-15-19

Images from the IMSA WeatherTech SportsCar Championship at Road America.

© G-Squared Media

Weather Tech Raceway 9-13-15-19

Intrepid at Road Atlanta - 1992.

IMSA

IMSA " Mosport

Images from the IMSA WeatherTech SportsCar Championship at the Rolex 24 at Daytona International Speedway

Weather Tech Raceway 9-13-15-19

Images from the IMSA WeatherTech SportsCar Championship at Road America.

Porsche 962 at Daytona - 1988.

Porsche 962 at Daytona

Audi 90 quattro IMSA GTO at Nürburgring WEC 2015

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Camera: Canon EOS 7D

Lens: EF- 70-200mm f/2.8L IS USM

Exposure: 0,004 sec (1/250)

Aperture: f/2.8

Focal Length: 75 mm

ISO Speed: 100

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Jenson Button

Luis Deletraz

Colton Herta

Jordan Taylor

Manufactured by TopSpeed Models

"John Winter", Massimo Sigala and Bob Wollek in the Porsche 962C entered by Joest Racing finished 7th. Photo by Ron Anzovina.

Program for the IMSA race held at Road Atlanta in September, 1981. Road Atlanta often hosted two IMSA races per year in those days. Pictured are John Paul, Jr. and Brian Redman.

IMSA's Porsche 928MD at Daytona.

Amy in her dress.

Lamborghini Gallardo [IMSA] tuned

Spice at Daytona - 1988.

Preston Henn's Porsche at Daytona - 1992.

Fitzpatrick, Moretti, Paul Jr., Hobbs, Paul Sr. at Road Atlanta - 1981.

Porsche 911 GT3 RSR

Chip Ganassi Racing poses for the team photos on Saturday morning

Tom Walkinshaw Jaguar at Daytona - 1989. This photo is on the back cover of the book, "On the Prowl" by Neil Smith. The book documents the history of the TWR Jaguar race team which raced in IMSA from 1985 - 1992. Nine more of my photos are in the book. The book consists of more than 500 pages and contains more than 600 photos. The book can be purchased on Amazon.com and from the publisher at www.bullpublishing.com.