With the ever-fluctuating prices of gas, the cost of driving is not the easiest thing to keep on a consistent budget.

Jonathan Welsh answers readers' car questions.

Neighborhood electric vehicles, or NEVs, are becoming a popular way to be a greener driver, but there are concerns with taking these vehicles on public streets.

Though gasoline prices are no longer peaking, the push is on to cut gas consumption. Will your next car be hybrid or electric?

A reader asks whether a new sales-tax deduction for car purchases in 2009 be a deduction or a credit on this year's tax return.

Jonathan Welsh answers readers' questions about cars.

As inventories run low on popular cars bought from the "cash for clunkers" trade-ins, car buyers may end up paying more unless car makers amp up production.

Cash-for-Clunkers' complicated rules make things harder for consumers trying to cash in.

You can solve the "'check engine' light" problem without negotiating a visit to your mechanic.

Rational thought almost gives way to greed in this story about buying a car, avoiding a scam, and overcoming emotions.