I've not seen the 2 sequels but do think this looks good. The 2F&2F along with Tokyo Drift were movies I've intended to Netflix for some time but just haven't.
I agree the tagline New Model. Original Parts. is some brilliant marketing by someone at the studio.
"You dated his sister? Your lucky."
"Why"
"Your still breathing."
Although I do take points off for lack of a proper title for the film.
The Fast and the Furious
2Fast 2Furious
The Fast and the Furious: Tokyo Drift
Fast and Furious
This 4th film is basically titled the same. All that is missing are the "the's" in the title. The only reason/excuse I see is an extension of that tagline New Model Original Parts and by naming this 4th entry essentially the same as the 1st it keeps the theme of the marketing linear.
I thought Drift would end this franchise despite its modest return at the US box office. I'm guessing Vin Diesel et als willingness to return is the sole reason this movie got made. They all need a hit(pending Babylon A.D. for Vin)
I may see it, depends on how the summer shapes up in '09.