Really? Microsizers are now packaged with 1.0's? That sucks. That was one of the best things about the release of Microsizers. I'll stick with my Bit Char-G.
As for motors. Goto Walmart, Kmart, Toys R Us, or Target and pickup a KIT Racing set by Hot Wheels. They come with either a 2.2 or 2.6 MicroB motor that will fit your Microsizer. Price is between $10-$14 (Walmart being the cheapest)
Slalom, Energi: 2.2
MPH/KPH, RPM: 2.6