Can the AI render them holding a lit cigarette while seated behind the wheel?  That would be the most realistic! Many of the best pedal pumpers from my past were smokers.  Back in the '90s when I worked at the dealership, my coworker Cindy smoked in brand new cars without giving it any thought.  She was a sweet and attractive former hippie in her 40s at the time who smoked Camel non filters like each one would be her last. Clueless that pumping was not recommended, Cindy cranked new EFI equipped Fords no differently than her old Toyota, constantly pumping the pedal.  This actually hindered a quick startup, making them whinny and cough before finally catching.  Once started, she always revved the engine at least a few times and often more.  This made black smoke blow out the exhaust, since the PCM was in open loop and delivering a cold start enrichment.  Sometimes Cindy performed several minutes of spirited revving while enjoying a Camel, particularly when warming up a car in cold weather.   Although I knew better, I loved Cindy's style and never dared try to correct her starting habits.  I also really regret never asking her to warm up my car, since it was carbureted and she was an excellent pumper and revver.  Cindy was the type who would've worked the pedal until the interior was toasty warm and full of secondhand smoke.