Lani's car is the only one destroyed in the World Race, whereas several are lost in AcceleRacers. New ones of the same model usually reappear, however.

In fact, when Pork Chop shows up in Ignition, he already has a replacement Rollin' Thunder for Monkey on is Rig.

Another thing I find odd is why Taro switched to Rivited. His damaged Road Runner was rescued from the Storm Realm, but you never see it again. Dr. Tezla built the most advanced racing vehicles ever in the World Race, yet in AcceleRacers, the cars are replaced with ''home built'' rods. I would've assumed Tezla's cars were better...

To be realistic about this, its almost certain a Mattel Marketing decision. New cars need to be sold cant have the old ones hanging around.

'55 Chevy Nomad World Race Wave Rippers Vehicle Info
'70 Plymouth Road Runner AcceleRacers Metal Maniacs Vehicle Info
Rivited AcceleRacers Metal Maniacs Vehicle Info