XTN

Do you know if the wheelbase between the rear axles will be the same as in 42087 or the shorter variant as in 42112?

Yeah, that's why the Corvette fits better to 42098 than to 42078, even though it's still a bit too large.

It's a heavy duty tow truck, so you should use it to tow other trucks like the Mack, which is also 15 studs wide - or the 42112 mixer, if you dont mind the discrepany between European and American design.

Here's a pic of my latest MOCs and mods. As imho LEGO 42078 Mack was the re-invention of the model team and was my personal entry to LEGO Technic, I am addicted to the Mack scale and every truck of mine has to be 15 studs wide, manually controlled and safe to be played by my kids. The cab of the red rollback truck is based on LoMaC's https://rebrickable.com/mocs/MOC-33419/LoMaC/42098-model-c/#details, the rollback and the chassis are MOC. I changed LoMaC's front bumper design to more American looking flat bumper. The blue mixer is a mod of LEGO 42112, obviously, but americanized to make it fit into my truck line-up. The yellow wrecker is based on timtimgo's https://rebrickable.com/mocs/MOC-43434/timtimgo/42108-american-tow-truck-alternate-build/#details, it shares the fenders and parts of the cab, the sleeper and the crane. It has 4 compartments that can be filled with 4x2 sized stuff. The front looks like a mix of Kenworth, Pete, Freightliner and Western Star. Fun fact: I finished it just before i read the rumors about the upcoming https://www.eurobricks.com/forum/index.php?/forums/topic/182487-42128-american-tow-truck/ The red COE is supposed to look Kenworth K100-ish and is a WIP. It is build from scratch. Since it is made of spares that are running out, it might take a few more weeks to finish. It pulls a classic American spread axle trailer which i created as an alt to the Mack trailer. All of the trucks are operated manually and have an inline fake engine under an openable hood (or tiltable cabin) coupled to one or two differentials - and you can open the doors :) I will start a thread to show you my complete garage soon.