They were definitely trying to make this something of a parody of the car chase scenes of the time. The RC car vaulting off a box of fruit instead of doing the traditional smash through a fruit stand is a nice touch.
I remember when the trailer for this film came out . The rc community was jumping for joy . This scene alone was like their Star Wars. Definitely recognize the Corvette Stingray body . I heard the Associated RC 10 was used which would make sense due to the metal chassis for the stunts. All the other manufacturers were using plastic/polymer platforms. One of the most expensive models at the time.
Harry & his partner could've ran out of his car and avoid getting blown away when Harry realized that little remote car would've blown up in the first place..vehicles can be replaced,lives can't.
Sorry but no car that size could hold batteries to power it so many miles and contain explosives and all the mechanism to steer and propel it, nice chase but theoretically imposible