Modern diesel engines perform exceptionally well at 1,100 to 1,200 rpm. They deliver peak torque just a few hundred rpm above idle, and peak horsepower somewhere around 1,500 or 1,600 rpm. But what ...

In the Oct. 2014 Pit Stop, you explained why horsepower and torque always cross at 5,252 rpm. And in the past you've published formulas for the relationship between miles per hour (mph), axle ratio, ...

How are modern cars so damn fast right off the showroom floor? It almost isn’t even fair to compare them to cars from 20 years ago, even if the older car is modified and makes significantly more power ...