Steve to include a tach in all models where a tach would otherwise be an But there are many models that don't offer ANY manual transmission In keeping with my prior opinion, consider not just a specif model, but I'd argue that very few people actually need a tach, regardless of transmission type. As others have pointed out, with most new cars-trucks having rev limiters, a tach is a "nice thing to watch", but not very useful, as well as how many people and how often does one red I think you can blame market research, focus groups, product testing, grabbing a piece of the after market pie, business decisions (e.g., "I'll give you a deal on 10 million fuel gauges, if you buy 3 million tachometers."), and just the general American mind-set of wanting things you don't really need for the reasons why there are tachs in At this point though, I think most people would notice that they didn't have a tach...even though they might not have a clue what it does :). I commend you for noticing just the opposite and questioning the Now, if someone can tell me why people don't use their cruise control,