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The Honda R series? Like 2006 civic?
Those are still throttled. Its just controlled by a servo instead of by a cable.
Actually people usually do make a pretty big deal when one of the manufacturers does say they are going to make something throttle less(as in no throttle body not as in no way to step down the fuel delivery, as it could be taken either way). Throttleless engines can come close to matching DI(diesel) FE. The reason they don't happen is emissions.
I can make my 93 more emissions friendly than it is with lean burning and a little water, but manufacturers can't get inside ULEV and do it without costs. Also no manufacturer would be able to sell a consumer car that requires a water tank to be filled on a regular basis. How could you market a car that had "extra maintenance." It would be like having to market a car that less HP. Those issues are irrelevant to hypermilers since we go to great lengths for little drops of gas.
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