For 2018, IndyCar goes back to being a series with an entirely spec chassis. But at least it does it with something that looks great. Let’s make one thing clear: The 2018 IndyCar is not new. Underneath, this is still a Dallara DW12. The. Dec 20, 2017. Affiliate marketing has generally been misunderstood by the C-suite. It's sometimes viewed as a channel that drives sales in a pinch but does…