@ Kenny, I was actually thinking as putting it as a separate website on the net, but I will still put contributors' names on it, don't worry.
This is what I have so far for Battle Machine, I've basically restarted my Career and I'm doing this based on version 1.2. If you have PS2, Wii, PSP, DS, ignore any parts that have Plymouth Road Runner or Seat Leon Cupra, and once you win the Showdown Chicago, Buy the Camaro SS straight away.
Battle Machine:
Recommended cars
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Grip- based on price, the Subaru WRX STi because it only costs 29,000 but once you start chucking in the upgrades it's an absolute track weapon. As an alternative, the Mitsu Evo IX will do as well.
Drag- Make sure you have plenty of money before doing this, but the Plymouth Road Runner because, well first and foremost, it costs nothing. As an alternative, save, save save and buy the Camaro SS after Showdown Chicago.
Drift- No matter what, get the RX7 ASAP. It's cheap, great for beginners and you can rack up points easily with it.
THE CHEATERS WAY!!!!!
Not necessarily the best way, but some of these cheats will get you a big headstart. First and foremost, use WORLDSLONGESTLASTING to get the Viper SRT10, then switch it to Drag, get a tyre or suspension package in Stage 3, and murder absolutely anybody with it. You can use it the whole way through Battle Machine and reACT and nobody can touch you. Make sure you're quick with the shifts when it nears the end of the rev range because that's where the supercharger kicks in most, and NOS it in 4th.
Murcie is back.