Hi all. Pick up my new ST tomorrow..... but im starting to wish i bought an STX. I couldnt see any major differences with each truck side by side, and the salesman didnt upsell the stx all that well, so i ordered an ST. i was told it was the same engine just different specs (for power output), but the difference in fuel economy between the two models worries me, and was not something that was mentioned to me. Also It is a series 5 ST, build 12/10, with the only difference between the series 4 ST apparently being different shaped blinker lights???? Just doesnt seem to make sense??? Also are the hardlids the same for the ST and the STX models? I have been told to buy one secondhand, as they are rediculously expensive, but now im thinkin i just order one from the dealer to save any trouble. Im now really confused, sorry for hijacking the thread, just after some answers before i drive out the dealers driveway