| 1 | A | B | C | D | E | F |
| --- | --- | --- | --- | --- | --- | --- |
| 2 | Craig Vetter Fuel Economy Challenge - Results |  |  |  |  |  |
| 3 | Year | Location | Winner | Fuel economy | Model | Notes |
| 4 | 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 | - |
| 5 | 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 |
| 6 | 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 |
| 7 | 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 |
| 8 | 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 |
| 9 | 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.