Easily the weakest of the series, this is a film the Herbie franchise could have done without. Having a child as the nominal lead in an essentially adult role is a surprisingly common motif in children's movies; surprisingly, because more often than not it fails to work and it certainly fails here. Eight-year old taxi drivers? I think not, not even in Mexico. Our Paco is more annoying than lovable and I found myself rooting for the villains instead. Clearly the writers are to blame for the mess - the cast is actually quite good, e.g. you cannot ask for much better villains than John Vernon, Alex Rocco and Richard Jaeckel, but they were fighting a loosing battle against a rotten script. The best asset of the film is Harvey Korman who shows the right spirit, and is given the freedom to act out his madcap humour. Neither his routines nor his character fit very well into the story, but the story is so weak one does not care.