This week, science finally settles the burning question: which Tappet brother is smarter? Inquiring minds want to know. (OK, we do!) Then it’s off to Ellen’s sticky story of a driver’s snack attack and one very gooey mess. Plus, Andrew turns private eye to crack the case of the mysterious auto part. And Estelle needs a clutch pedal for the vertically challenged. Tom and Ray to the rescue, we hope! That and more in this week’s show.