The game actually indicates the speed of the truck in percent. So probably there is a truck that has 100% for speed, I wonder which one. The argosy with the 600hp engine is at 75%

I wouldn't be too concerned with the percentage. I have purchased many different trucks, and maxed them all out. The percentage really doesn't play much of a roll, if at all. I don't even know why they put it in.

Best Traffic Settings?
 

Hi guys i was just wondering what traffic settings do you guys use for story mode,what i mean do yous have the bar half way or what,thanks

That would depend on your computer specs. High-end computers can handle the max settings, and low-end computers would take some experimenting. It also depends on what you particularly like (lots of traffic, or less). I generally use medium traffic, or less. Too many cars going at slow speeds (50mph, or less), is a major draw-back for the game. So, you may want to use what is comfortable to you.

I always use max settings for traffic, but that goes for all games not just this. Its annoying sometimes in this game since the time limits for deliveries doesn't account for traffic but I don't like empty roads.

One more question about the engines, will the truck be the fastest with the most expensive engine, or do I have to try them out one by one to find which one is the best?

It won't be the fastest in relative terms. It will reach its top speed faster with a higher more expensive HP, and maybe a touch faster in MPH. The HP doesn't play a huge roll in top speed as one would think in the game. I would like to see it play more of a role in this aspect though.

Max for me to

Max would be ideal for me too, but I put it at four bars since the game struggles to run so much with all that traffic, just to get a bit better fps.

Yep max here too. Its funny when you have competition in delivering a load and you and your opponents get stuck in heavy traffic.;)