Actually it was 173 mph = 277km/hr
3000 ft/sec = 180,000 ft/min = 10,800,000 ft/hr = 2,045 mph = 3,272 km/hr.......
By my "rough" calculation....
At 140km/hr using 11 litres of fuel = 0.0786 litres/km
3,272km/hr using 6,010 litres of fuel = 1.837 litres/km
11 litres before the light comes on = 5.99 say 6km
3,272 km/hr = 0.909 km/second so ......
Looks like you have 6 seconds of fuel to travel 6km to beat the new speed camera...... [moto]