After the obvious wash/dry/clay I would have no hesitation to jump right in with my Makita rotary buffer, a wool pad and our new M105 Ultra Cut Compound. After that step I'd re-evaluate the finish to see if I needed to follow with something less aggressive, such as M80 on the D/A as a follow up. On a black car like Smokey's I'd then follow with either M03 Machine Glaze via rotary or M81 Hand Polish before finishing off with M21 Synthetic Sealant.

The M105 is just amazing - we have exclusive rights to the ultra fine micro abrasives used in this product and we constantly amaze ourselves at this product's ability to pull out 1000 grit wet sanding marks and still finish so nice that sometimes you can go straight to wax. I can't think of another product that will let you do that without leaving a ton of holograms and buffer trails or at least just hazing the paint really badly to where you'd need to follow with a finer cutting product.

My 2005 Limited Roadster had been sitting on a dealer lot for 2 years before I got it and it was a mess. Who know how many times the dealer washed it with an old towel, which is par for the course for cars sitting on a lot for extended periods. I used my Makita/wool pad/M105 because the D/A was just taking too long - the clear on our cars is pretty darn hard.