Coming along just fine.
You might want to try to press the wheels onto a heated piece of metal (e.g. an old butter knife) to simulate flattened tires (unless it's supposed to be an actual working car)
Also, have a look at photos of oxidized chrome. For that much rust on your fender, you should consider to give the rest a coat of matte varnish and/or apply some dark grey spots.
(myself I use a grey drybrush to dull the shiny parts)
Oh, and don't forget to give you're hubcaps the same treatement.
