In July 1990, 32 teams of some of North America's brightest college students took to the road in solar-powered vehicles they had built during the previous year and a half.^[1] The GM Sunrayce USA route covered more than 1,800 miles, from Florida to Michigan.^[2] Three of the top finishers won a trip to Australia in November to compete in the 1990 World Solar Challenge.

Route

Day 1: Mon, July 9: Start in Orlando, Florida; finish in Floral City, FL.
Day 2: Tue, July 10: Start in Floral Park, FL; finish in Tallahassee, FL.
Day 3: Wed, July 11: Start in Tallahassee, FL; finish in Montgomery, Alabama.
Day 4: Thu, July 12: Start in Montgomery, AL; finish in Haleyville, AL.
Day 5: Fri, July 13: Start in Haleyville, AL; finish in Spring Hill, Tennessee.
Day 6: Sat, July 14: Start in Spring Hill, TN; finish in Bowling Green, Kentucky.
Day 7: Sun, July 15: Start in Bowling Green, KY; finish in Louisville, KY.
Day 8: Sun, July 16: Start in Louisville, KY; finish in Indianapolis, Indiana.
Day 9: Mon, July 17: Start in Indianapolis, IN; finish in Greenville, Ohio.
Day 10: Tue, July 18: Start in Greenville, OH; finish in Mason, Michigan.
Day 11: Wed, July 19: Start in Mason, MI; finish in Warren, MI.

Results

Position	Team	Car Name	Time
1	University of Michigan	Sunrunner	72:50:47
2	Western Washington University	Viking XX	74:10:06
3	University of Maryland	Pride of Maryland	80:10:55
4	Cal State LA	Solar Eagle	81:03:44
5	Crowder College	Star II	81:06:18
6	MIT	Galaxy	83:57:37
7	Stanford University	SUnSUrfer	93:56:53
8	Western Michigan - Jordan	Sunseeker	96:55:20
9	Colorado State University	Stelar V	97:55:06
10	Cal Poly - Pomona	Solar Flair	99:05:57
11	Drexel University	SunDragon	100:03:40
12	RIT	Spirit	104:21:18
13	Stark State College	Solis Tyrannus Cognoscis	105:06:47
14	Worcester Poly	Starduster	106:34:60
15	Auburn University	Sol of Auburn	107:24:35
16	Minnesota State University, Mankato	Northern Light	108:18:45
17	Iowa State University	PrISUm	109:08:29
18	University of North Texas	Centennial	110:48:04
19	Cal State - Northridge	CSUN - Blazer	110:49:57
20	Rose-Hulman Institute of Technology	Solar Phantom	111:07:44
21	Cal Poly - San Luis Obispo	Sun Luis	113:00:15
22	University of Texas	Texas Native Sun	113:15:25
23	Dartmouth College	Sunvox III	113:48:13
24	University of Waterloo	Midnight Sun	114:37:15
25	Florida Institute of Technology	Sunshine Special	116:39:41
26	University of Pennsylvania	Solstation	122:14:48
27	Virginia Tech	VT Solaray	130:27:08
28	Clarkson University	Kalahkwaneha	131:52:00
29	University of Ottawa	Team Ralos	132:48:18
30	University of Puerto Rico	The Shining Star	135:44:30
31	Arizona State University	Sun Devil Cruiser	136:49:18
32	Villanova University	Wild Solarcat	137:04:11

^ Patterson, P. and Siegel, W., "The 1990 GM Sunrayce USA: A Summary," SAE Technical Paper 910621, 1991, doi:10.4271/910621.
^ Rose-Hulman GM Sunrayce USA page

v t e American Solar Challenge
Sunrayce 90 Sunrayce 93 Sunrayce 95 Sunrayce 97 Sunrayce 99 American Solar Challenge 2001 American Solar Challenge 2003 North American Solar Challenge 2005 North American Solar Challenge 2008 American Solar Challenge 2010 American Solar Challenge 2012 American Solar Challenge 2014 American Solar Challenge 2016