The riveted coaches stopped being produced in 2000 so that's why I purchased a 1998. Another thing is BEWARE of delamination on on Prevost coaches without rivets. It will be an issued if you are looking at a 2005/2006.
Executive buses average 6 miles per gallon, especially when it comes to larger models that carry 45 to 51 passengers. Newer, high-tech models may get up to 10 to 12 miles per gallon. The larger the bus, the lower the average mileage.
An all diesel coach bus averages 2.5 mile to the gallon Metro Style Buses closer to 3.5mpg. A full size bus holds about 250 gallons of fuel. This make the range about 625 to 750mpg depending on the style of bus. The longest range electric bus made by Proterra was driven 1,101 miles on one charge.