 
I like the idea of having one truck that is redone every couple of years.  It's a nice way of tracking your progress as a maker.  The Ride is that truck for me.  The first one, on the far left, was made when I just got back into MTM2 after a few years away.  I hadn't planned on doing a bunch of custom trucks, but I enjoyed the process and now that's all I make.  That first Ride was all other people's parts.  The second, in the back, used my frame and my tires.  The third, on the right, I made everything but the body.  And in front is the new one, and it's all 100% me.  And that's something I thought I'd never do back when I picked this game back up.  Quite a difference, eh? 
I still enjoy making trucks, and the low-detail modeling constraints of MTM2's engine make it perfect for me, since I can work to my strengths in the paintwork.  It took me forever to do the new body, and I hate that, but now I have another canvas to work on, and that's what I wanted from the beginning.  Now on to other projects, definitely more trucks and maybe even...tracks?
 http://mtm2.com/~trucks/trucks.cgi?search=The+Ride+2010&truck=on
http://mtm2.com/~trucks/trucks.cgi?search=The+Ride+2010&truck=on