Rainbow Dash: XK Jaguar painted Rainbow colors
AppleJack: H3T Hummer
Twilight Sparkle: Purple Smart Car
Fluttershy: Pink and Green Prius
Rarity: 2011 Chevrolet Volt
Pinkie Pie: Ice Cream Truck with Full DJ set and Party canon attachments with 1,000,000,000,000 years worth of cake and ice cream.
Spike: Purple and Green Bicycle.