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I did this video to see how AWD systems can be useful for low powered and high powered cars. Note, this is a front-engined car.

From this experiment I noticed that the best power traction acceleration curve (for low powered front engined cars) is when all power is on rear wheels. But, the second best traction curve is at 60-70 PER CENT FRONT WHEELS and 40-30 PER CENT REAR WHEELS power distribution.

For high powered front engined cars the best traction is at 50-70 PER CENT REAR WHEELS and 50-30 PER CENT FRONT WEELS (the total power on rear wheels being as ineffective as the total power on front wheels).

In conclusion, for low powered front engined cheap and not too heavy but also not too light cars : the best solution is rear-wheel drive traction system. So, for low powered front engined cars : an AWD system is useful only for superior control to avoid oversteering (60-70F 40-30R)(but which can be avoided by designing direction systems with much bigger steering angle, 60 degrees) and and AWD it's useful also for decent offroad performance.

To improve the traction for front engined low powered cars the best is rear-wheel drive system and better gearing, and maybe a wonder device, if it can be designed one. The low rpm maximum torque engines didn't showed any improvement for the traction acceleration curve.

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