I've acquired a partially built truck (2 sets wheels so not huge), of which the bottom section is all I have (from the floor down). There is a transfer on both sides (on red bricks, which made me think of a fire truck, but no luck). This sticker looks like an advertisement or sponsorship logo you might see on a vehicle. It says Octan, then Tele (with the top of the T being a telephone receiver), then a white square with a black border with the initials CB in black typeface in it. It also has a tow hitch on the rear. Any ideas what model number I've got?
Based on your description of the brick with “transfers”, which I assume are stickers, there is only one set that has Octan and Tele logos on it: 60084 Racing Bike Transporter. This set seems to match the rest of your description as well.