Taste is a fickle thing. What’s cool today is lame tomorrow. Few things vex automakers more than this aspect of human nature, because new and even updated cars can take years to reach showrooms while the instant gratification generation loses interest. The following are perfect examples of the trouble automakers find themselves in. These vehicles are as much rumor as they are fact. They’ve been rumored, alluded to, teased, promised, and delayed more times than we ...