It's the end of the road for "Car Talk." After 35 years on the air, Click and Clack have run out of gas, and will stop taping new shows this fall. Tom and Ray Magliozzi have hosted NPR's most popular show for decades, but the brothers say it's "time to stop and smell the cappuccino." The mechanic brothers started their auto advice show in Boston in 1977, and have been dishing out car tips and jokes every Saturday morning on NPR since 1987. "We've managed to avoid getting thrown off NPR for 25 years, giving tens of thousands of wrong...