In 1997/8 the car was converted by Prototype Technology Group (PTG) to wide-body IMSA GT specification with a 6-cylinder engine. The car would make it's race debut in that format at the 1998 Petit Le Mans.

Run by PTG in the 1999 American LeMans Series and United States Road Racing Championship, and by Genesis Racing in the 2000 and 2001 GrandAm series.

Prototype Technology Group (PTG)
10/10/98 Petit Le Mans - #1 Peter Cunningham / Brian Simo / Terry Borcheller / Javier Quiros - 16th
31/01/99 Daytona 24h - #6 Quester / Boris Said / Cunningham / Simo - DNF
20/03/99 Sebring 12h - #7 Simo / Cunningham / Johannes Van Overbeek - DNF
18/04/99 Road Atlanta - #7 Cunningham / Van Overbeek - 16th
31/05/99 Lime Rock - #7 Cunningham / Van Overbeek - 9th
27/06/99 Mosport - #7 Cunningham / Van Overbeek - 19th
25/07/99 Sears Point - #7 Christian Menzel / Cunningham - DNF
01/08/99 Portland - #7 Menzel / Cunningham - 19th
18/09/99 Petit Le Mans - #7 Cunningham / Simo / Cunningham - 18th
10/10/99 Laguna Seca - #7 Simo - DNF
07/11/99 Las Vegas - #7 Peter Cunningham / Brian Cunningham - 15th

Genesis Racing
06/02/00 Daytona 24h - #50 Bill Auberlen / Rick Fairbanks / Nick Ham / Chris Gleason - DNF
22/04/00 Phoenix - #50 Fairbanks / Auberlen - 11th
30/04/00 Grand-Am Homestead - #50 Fairbanks / Chuck Goldsborough - 19th
29/05/00 Lime Rock - #50 Fairbanks / Auberlen - 2nd
04/06/00 Mid-Ohio - #50 Fairbanks / Auberlen - 36th
29/06/00 Daytona - #50 Fairbanks / Auberlen - 21st
09/07/00 Road America - #50 Fairbanks / Andy Pilgrim - 16th
30/07/00 Trois-Rivières - #50 Fairbanks / Pilgrim - 10th
17/08/00 Watkins Glen 6h - #50 Auberlen / Fairbanks - 14th
10/11/00 Daytona - #50 Sonja Bayer / Jean-Francois Veilleux - 20th
19/05/01 Watkins Glen 6h - #9 Tim Pappas / Doc Lowman / Emil Assentato - 22nd
26/05/01 Lime Rock - #7T Marc Bunting - 8th
08/07/01 Road America - #9 Bunting - DNF