Spa is an absolutely fantastic track, that offers fantastic racing. There is the problem of peopel cutting all sorts of places on it, in random online lobbies. But if you join a series Racing Series, or have a group of friends, you can have some great races on it. The track also looks great, and supports rain.
The Speed test track is nice for photos, as well as offering a good way for GTP hosts to test out cars for events. Not much good for racing, though I don't really regret buying it.
I haven't bought Motegi, as I find it too expensive. I've heard talk that the track isn't as well made graphically, as it should be. Still seems like a fun track to race on though.
Now for the car packs.
The first car pack is filled with what is esentially RM models of existing cars. Most are heavily modified, and they're great fun to drive. I espicially love the Mazda MX5 and RX7. And the Karts are good to have, if you want to attend any series Kart Racing.
The 2nd car pack, is somewhat less interesting. Though if you're graving some more hatchbacks, espicially in terms of modern European cars, then I can recommend it. As a side note, I believe 3 out of the 4 cars in that pack, have working fuel gauges.
The 3rd car pack is a beast of a pack, giving you Lamborghinis new Aventador, and the beloved old VW Beetle. Also adds another premium Group C car for you to use (updated standard car). The Aston is every bit as fun to drive as the existing DB9, but with more power. The new Mini Cooper is nice, though it's a shame we didn't get it in 4WD configuration, and the Leaf... Well, it 's a leaf. Can be fun for kicks. It's head light suck at night on the Ring.
Then there are the small packs like the Racing suits and paint packs. The Racing suits are kind of aweosme, though they really should be free. Same can be said for the paint pack. None the less, they cost next to nothing.
Hope this helps you.
