Note: This procedure requires editing a game file; creating a backup copy of the file before proceeding is recommended. With a text editor, edit the "builds.csv" file in the "game\data" folder. The format for the parts is ID TAG, NICK, COST, WEIGHT, POWER FACTOR, NOISE FACTOR, DEPENDABILITY FACTOR, PASSENGERS, CONSUMPTION FACTOR. You can edit the settings to your satisfaction.
At the end of the airport near the museum is a vending machine. Click on it to get electrocuted, but afterwards you will have a pop in your item bar. Click on it. You will be able to temporarily walk very fast. Anytime you need another pop, just click on the vending machine. Note: If you first get the gloves off the counter at PetrolAir you will not be zapped when you get the can from the vending machine.