There are three new Speeders that you can get by using the seeker droids. Two are blues which are 4 parts each, and one purple with 6 parts. I myself have found only one of the purple speeder parts. Go to Nar Shadda and look at the GSI Vendor in the upper Promenade to check them out and see what parts you need (one of the speeders you can get, a blue one, is the TAXI speeder that looks like the one from Return of the Jedi , the purple one looks like a hotrod with flames coming out of six pipes on it's back.)