The HPI Sprint 2 platform has been around for a few years now and is a great RTR option to get you on the road or drifting! The Sprint 2 Drift, Sport and Flux all share the same chassis while the Flux offers you a brushless system to get you the estimated 53mph as stated on the box. The Sport and Flux come with grip tires where the Drift comes with it's namesake tire. This 1/10th scale 4wd belt driven chassis has great durability and for under $300 for a full RTR and a very scale body, it can't be beat.
Check out the Real 1:1 version of this car and what the venting does:
http://www.youtube.com/watch?v=Ao_o7VVgyek
Here's where I got it and some info from HPI:
http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXCWGB&P=ML
This is the 1/10 scale, electric powered, 2.4GHz radio controlled,
RTR HPI On-Road Sprint 2 Drift Car
with the Falken Tire Porsche 911 GT3 RSR Body.
FEATURES: Chassis: 3/16" (4mm) thick plastic
Drive: Four wheel belt drive
Motor: Firebolt 15 turn brushed
Radio: HPI TF-40 2.4GHz with waterproof steering servo and waterproof
receiver box
Electronic Speed Control: HPI SC-15WP LiPo compatible, waterproof
and reversible
Battery: HPI Plazma 7.2V 2000mAh with Standard connector
Battery Charger: AC wall type
Ball Bearings: Full set included
Shocks: Oil-filled, plastic bodied with special drifting springs
Differentials: Planetary gear with metal outdrives
Transmission: Single speed
Tires: Rubber slicks, width 1.2" (30mm) front, 1.3" (33mm) rear
2.5" (63mm) diameter
Wheels: BBS lace pattern, black in color
Pinion Gear: 28 tooth 48 pitch metal
Spur Gear: 48 pitch, 87 tooth, composite construction
Body: Painted and trimmed Porsche 911 GT3 RSR
Bumper: Front, foam
Suspension: Fully adjustable
Ackerman: Adjustable, Ackerman describes the effect of the inner
front wheel turning faster than the outer front wheel during turns
Caster: Adjustable, caster/toe-in refers to the angle of the front
suspension when viewed from the side of the car in relation to the
chassis
Camber: Adjustable front and rear, camber refers to the angle of the
tops of the tires from vertical when viewed from front or behind
vehicle
Steering: Ball race bell-crank type with servo saver
Warranty: Two year limited warranty through HPI beginning at purchase
date. Valid only in the USA, Canada and South America
INCLUDES: HPI On-Road Drift Porsche 911 with motor, electronic speed
control, painted body, drift tires, wheels, 28 tooth pinion gear
4 AA batteries for radio, 2000mAH battery, wall charger,
87 tooth spur gear, 2.4GHz radio, steering servo, decal sheet, 15T
motor and instructions
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REQUIRES: Misc. Items: Building and track equipment
SPECS: VEHICLE-
Length: 17" (431mm)
Width: 7.5" (190mm) - 8.0" (203mm) adjustable using offset
wheels
Height: 5" (127mm)
Wheelbase: 10" (255mm)
Front Track: 7.38" (187.5mm) side to side at outer edges of wheel
Paint: Polycarbonate safe spray or brush-on
Misc. Items: Building and track equipment
Front Tread: 6.5" (166mm)
Rear Tread: 7.2" (183mm) side-to-side at wheel centers
Ground Clearance: 0.5" (13mm)
BODY-
Length: 19.1" (485mm)
Width: 8.27" (210mm)
Height: 4.61" (117mm)