Absolute opposite to what you might think as the all alloy ST200 is only 32kg more that the original Kent lump but with the Sierra rear axle which is twice the weight as the original axle resulting in a near balance in weight front and rear which in turn results in excellent handling (in the dry) after 10 years of driving this you are always pushing more and it never disappoints, I can't improve on it and many drivers have test drivin this car one was a former rally champion and are all surprised at how good it is. Power is at 300hp & 300lb ft torque at 5500rpm on a stock engine running an aftermarket fully programmable