I'm not sure for the sparrowhawk but I'm sure some parts will fit. I'm looking for a 4wd eventually. And the sparrowhawk for me looks good. Are you looking for new or pre owned as if pre owned I'd recommend eBay or going down to your local race track as someones always selling something but they mostly use Schumacher, team associated, Durango and I guess the new losi will be coming very popular in the next few months. But it pays to be different sometimes. I like the fact I'm the only one with a thunder tiger at the clubs I go to as it's more fun and you feel like you've beaten some of the races in you own way, instead of how everyone else is setup. I see it as part of the fun
but that's just me.