Since Toyota redesigned the Tacoma for 2016 and the Colorado was all new for the 2015 model, this is a difficult question to answer. However, historically the Tacoma has been very reliable and the Colorado less so. The current Frontier is an old design and seems to be just slightly behind the Tacoma in most areas as far as repair rates go. If you look at the so-called reliability data collected by that "leading consumer magazine", you'll see what I mean. As the stock brokers and finanical advisors say: "past performance is no guarantee of future results". As an owner of a 2013 Tacoma (std cab, 4 cyl), my take is that it would be hard to go wrong with the Tacoma if its size and features match your needs since so much of the new design is really a carryover from the previous generation.