CLICK & CLACK : Covered and Curious

Sunday, February 4, 2007; Page G02

Q Dear Tom and Ray: I have a 2001 Saturn SL2 with 87,000 miles on it. The car is paid off. I live in the congested New York City area and drive it on weekends only. My boyfriend says that the car is not worth keeping under collision coverage. I am undecided. Do you have a "system" that helps you determine when it is time to drop the collision coverage on a car? -- Jennifer

A RAY: The collision and comprehensive portions of your insurance policy pay for damage to your car, whether it's caused by an accident, vandalism or a toilet that lands on the hood after a neighbor throws it out of his second-floor window while doing a particularly frustrating bathroom remodel.

TOM: If your car is totally wrecked, the insurance company will pay you up to the book value of your car, minus your deductible. So, in your case, let's say your car is worth about $4,000 right now. You probably have a $500 deductible. So, in the case of a total loss, you could collect up to $3,500 to put toward a replacement car.

RAY: But remember, for each year that goes by, your car will be worth less, so your potential payoff is decreasing all the time, while your insurance bill probably is not.

TOM: Now, how much do you pay for collision and comprehensive insurance? You can look on your insurance binder. Let's guess it's about $500 a year. It could be more in New York City.

RAY: It's impossible to know the odds of you totaling your car in the next few years. After all, that's why they call them "accidents." The question is what makes you feel comfortable.

TOM: If you're in a position to either buy another car if you need to or live without one, then you can drop the coverage and take your chances.

RAY: Now, if the car were worth $15,000 and you had a $12,000 loan on it, it'd be a no-brainer to keep the collision and comprehensive.

TOM: Considering how little you drive the car, if it were me, I'd dump the coverage. But if you're the kind of person who would be up nights worrying about it, Jennifer, then keep the collision and comprehensive coverage for now. And when the book value of your car gets low enough, dump it then. The good news is, it won't be long until that day arrives.

Dear Tom and Ray: There has been a recent upsurge of extremely low-profile tires and extraordinarily large-diameter wheels on all types of personal vehicles. Is this good: stiffer sidewalls -- less lateral movement? Or is this bad: more unsprung mass -- changing suspension requirements? Or is this just an expensive affectation? -- Frank

RAY: It's primarily about style, Frank. People want bigger wheels because they look cooler.

TOM: And if you use a bigger wheel, you have to use a lower-profile (shorter sidewall) tire so the wheel/tire combination still fits in the car's wheel well.

RAY: The weight isn't much of an issue, because alloy wheels are pretty light.

TOM: You do get some handling benefits with lower-profile tires. The less-expansive sidewall you have, the less the sidewall will flex on turns.

RAY: But you pay a high price in ride quality. Because you have less sidewall, there's less of it to absorb bumps and potholes.

TOM: The other significant argument is that with less sidewall, the wheels themselves are much more vulnerable to being bent from potholes and scraping against curbs. When you have to replace a 19-inch alloy rim and it costs you $750, you're going to wish you'd gotten the smaller wheels with bigger tires.

Got a question about cars? Write to Click & Clack in care of The Post, or e-mail them by visiting the Car Talk Web site athttp://www.cartalk.com.

2007by Tom and Ray Magliozzi and Doug Berman


© 2007 The Washington Post Company