Towing Semis. It’s What Makes Subaru, A Subaru. Posted by RallySportDirect.com on December 21, 2009March 6, 2010 Posted in Video A semi caught in a bit of slush was helped pulled out by an STi. With the STi’s all wheel drive system paired with good tires, it gave the semi the extra traction it needed to get moving again. Video courtesy of Tastes Like Pizza.