Interesting questions, and as for the Corvette it is designed to run on 6 fuels (including propane, butane, gasoline, diesel, benzene, kerosene). While in Russia, we even ran it on pure Vodka getting better mileage than on gasoline. We tasted the Vodka prior to pouring it into the tank, to be sure it was suitable for the car...
The 1907 Thomas Model 35 was selected right off the Buffalo factory lot (brand new), with no special preparation as the other competitors had done. It was shipped by rail to NYC, and stored at the Houpt dealership until the start on FEB 12. The Thomas boasted 60hp and cost $4000 (approx. $100,000 today). The Flyer engine still stands as the largest auto production 4cyl engine ever built, at 571.3 cu. inch (9.3 liters).
The question as to what is it like to be with the Flyer? I was very fortunate over the years to drive and ride in it, as well as meet Bill Harrah on several occasions. Bill and Great Gramp became good friends, beyond their shared interest in the Thomas. Bill as many of you know, was a real gentleman and came to Springville to visit George especially in his later years.
I've also told the story of the Race from the driver's seat of the Flyer at several events including the Amelia Coucours, and the HCCA 75th Anniversary celebration. Sharing the epic adventure just as I heard it growing up from Great Gramp, while at the wheel of the Thomas is as exciting for me as it is for the audience! Mention was made above that this story takes on a "life of its own", and everyone in the room could feel it....