Two Pickups with more similarities, such as the body structure, starting price, fuel economy, and height, than differences, like the horsepower, ground shadow size, and maximum occupancy. First of all, the 2018 Chevrolet Silverado 1500 Regular Cab has a more powerful engine than the 2018 Toyota Tacoma Double Cab. Also, the 2018 Silverado 1500 Regular Cab has a slightly larger body than the 2018 Tacoma Double Cab. And finally, there is a difference in the number of passengers; the Silverado 1500 Regular Cab seats one more the Tacoma Double Cab. Among similarities are the body structure, starting price, fuel economy, and height.