Craig Vetter Fuel Economy Challenge
Results

Year
Location
Winner
Fuel economy
Model
Notes
1980
Colorado Springs–Cripple Creek, Colorado
Lammy Johnstone
97.9 mpg‑US (2.40 L/100 km; 117.6 mpg‑imp)
1000 cc Harley-Davidson
-
1981
Templeton–Cambria, California
Mike Hishki
189 mpg‑US (1.24 L/100 km; 227 mpg‑imp)
Honda Passport
Matt Guzzetta/Don Vesco "Project 200" streamliner entered, disqualified
1982
San Luis Obispo–Monterey, California
Charly Perethian
282 mpg‑US (0.83 L/100 km; 339 mpg‑imp)
185 cc 1982 Yamaha
Vehicle now in Smithsonian
1983
Carmel–Carmel, California
Charly Perethian
372 mpg‑US (0.632 L/100 km; 447 mpg‑imp)
185 cc 1982 Yamaha
Vehicle now in Smithsonian
1984
Carmel–Carmel
Masakazu Matsuzawa
377 mpg‑US (0.624 L/100 km; 453 mpg‑imp)
Honda XL 125
Record 557 mpg‑US (0.422 L/100 km; 669 mpg‑imp) achieved by Dan Hannebrink on first stage
1985
Carmel–Big Sur–Laguna Seca
Masakazu Matsuzawa
470 mpg‑US (0.50 L/100 km; 560 mpg‑imp)
1980 Honda XL 80
-

Question: How many miles per gallon did Charly's Perethian's motorcycle achieve at the 1983 challenge?
Answer: A motorcycle designed by Charly Perethian with a 185 cc Yamaha motor achieved 372 miles per US gallon (0.632 L/100 km; 447 mpg‑imp) at the 1983 challenge, and is now displayed in the Smithsonian.