SHEBOYGAN, Wis., July 18, 2014 /PRNewswire-iReach/ -- A Sheboygan, Wis. area auto group is endorsing a fuel-efficient coupe that is small but mighty. Sheboygan Cadillac is promoting the 2014 Cadillac ELR Coupe for all drivers who seek a small price tag along with the ability to breeze...