A neuroscience study commissioned by Castrol has quietly upended one of the automotive world's most cherished assumptions: that speed and power are the engines of driving excitement. Researchers measuring brain activity, heart rate, and eye movement across five driving scenarios found that what truly ignites the human mind behind the wheel is not velocity but control — the deep, absorbing state of being fully present in conversation with a machine. A go-kart at 48 miles per hour, it turns out, can speak to the nervous system as eloquently as a supercar at 205. In an industry that has long wors