This week on Car Talk, Summer has come to Antarctica, and the ride in John's Delta has gotten so bumpy that he and his colleagues are banging their heads on the ceiling. Closer to home, Leland's Toyota can't pull a hill. Tom and Ray should have no trouble diagnosing Leland's problem, if they can figure out what "pull a hill" means. Also, Steve's ex-wife has a trio of car problems, which Steve may be a little too intetrested in trying to solve; Charlie desperately wants to blame a transmission shop for his fan breaking off and damaging another car; and Erin's best solution to a math lesson gone awry may be to stand her Impreza on its side. All this plus the true meaning of Santa Fe, and more, this week on Car Talk.