We all love to play cars, from racing to driving lorries and other unusual or large vehicles. The usual challenge is not to damage your vehicle and to keep on schedule, or win a race. In GTA My Way, I'd have all sorts of driving jobs that you can do to earn money in the game.
http://www.Excalibur-Publishing.com/EuropeanBusSim.html
About Jobs in GTA.
There would be no point to earning money if like in most GTA style games, there is nothing much to spend it on. GTA4 for example has nothing to spend your ill-gotten-gains on except your clothing and your health when injured, (and at a stupidly high price rate too). Don't bother counting burgers, hot-dogs and drinks at vendors and vending machines at $1 a time, or the car washes or bridges at $5 etc.