Investors interested in Auto-Tires-Trucks stocks should always be looking to find the best-performing companies in the group. Workhorse Group (WKHS) is a stock that can certainly grab the attention of many investors, but do its recent returns compare favorably to the sector as a whole? Let's take a closer look at the stock's year-to-date performance to find out.Workhorse Group is one of 103 companies in the Auto-Tires-Trucks group. The Auto-Tires-Trucks group currently sits at #9 within the Zacks Sector Ran ...