When Toyota introduced their multi-valve engines early 1980s, this was advanced technology from another era. No other manufacturer, except for Triumph, was sane enough to put a multi-valve engine into a consumer car. You could argue that Nissan did the same by placing the S20 engine in the KPGC10 and the Fairlady Z432R. However, there were only a few thousand of these engines built! So when Toyota hit the market with the 1G-GE, 4A-GE and 7M-GTE in the early 1980s, this was totally out of this world! This mid-1980s European Toyota multi-valve ad boasts about them:
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