Thanks I know, ratios are not really unlimited, still has a top and bottom. CVT - Continuously Variable Transmission.

Was just referring to the way auto boxes keep adding gears - three, then four, five, six, seven, what next, where does the extra complication / weight cancel out the return .

If you didn't know DAF were using CVT in the 1950's and Williams investigated CVT for F1 in 1990's.