If we only buy cars with 5 litre V8s, this will hasten America's switch to metric.
Steadfastly refusing to engage in foreigner-speak has made the English language the modern lingua franca. The remnants of the imperial measurement system can be stomped out in the same manner. When you hear anyone mention a fluid ounce or other obsolete unit, loudly state "what's that then?", and demand conversion to metres, kilogrammes, hectopascals, or some similarly sane unit.
An imperial unit
A righteous metrician demanding a 500mL drink.
Rollin' in my 5.0 with my rag top down so my hair can blow