Lux-O, I agree with you on most points there...CGI car, bike and boat stunts/ effects are definitely the worst. If you can't find a stunt team somewhere in the world to get the actual vehicle to do the stunt "practical", then that stunt should not be depicted on film.
The 007 productions actually did a 2-wheel ski with the Mustang (several times, in fact!), spiraled a Hornet over a canal, Jumped a pig-heavy BMW bike from rooftop to to rooftop, spiraled a speedboat in the air across the bow of another boat, flipped an Aston a world record EIGHT TIMES...all without the use of CGI and with actual drivers in the vehicles!
Preposterous as many of them are, they were actually performed and that makes them "cool"...nevermind all the hidden mechanical trickery needed to pull them off. CGI is just...well, you said it; no different than a cartoon.
Fast and Furious is bad with thier cartoon/ CGI stunts, and as much as I like Jason Statham those "Transporter" movies with the Audi CGI-stunts are so stupid I can't watch the rest of the movie.
But..."Miami Vice" was terrible for basically one reason: Jamie Foxx and his enormous ego. When production started, Foxx's character "Tubbs" was second-fiddle to the "Crockett" character...just like in the TV show. However, during filming Jamie Foxx became the recipient of an Oscar for his role as Ray Charles in the film "Ray". Faster than you could say "action"...Foxx and his agents decided that since he was now THE Oscar-winning actor in the film, his role should be beefed up to appropriate proportions. never mind that a script was written, storyboards created and sets built/ acquired...Foxx demanded sweepingf changes, and the studio went along with it. Michael Mann has no power to veto it short of quitting the movie. Pages were rewritten on set every day...to disastorous results. You are right, that movie flat sucked. I blame Foxx.
I still think this could be good...I'll give it a chance. But if it stinks, I'll be the first to agree with you!