This week on Car Talk, Suzy's drive across Mexico is off to a rocky start. She hasn't even crossed the border, and her Vanagon is already making a new noise that could foreshadow the Death of a Transmission. Will Tom and Ray counsel her to turn back, or just to go shopping for a good pair of noise-canceling headphones? Elsewhere, Patricia's Subaru is having troubles starting, and exacerbating the problem is a large buffalo grazing between her and her car; and Katie's right leg is showing its displeasure with her new Volvo by going numb when she drives it. Also, does Neil's son's decision to play the double bass mean Neil's on a one-way street to Minivan Land, and is Kelly's boyfriend nuts for insisting on warming up his truck for 10 minutes in 50 degree weather? All this, and lots more, this week on Car Talk.