I'm looking at replacing my civic as well. It runs great, but I get nervous as it approaches 200,000 km (160,000 miles). I've looked at MSRP, fuel and O&M costs for a variety of cars including 100% electric Nissan Leaf and Ford Focus. What I've discovered is this:
* fuel efficient conventional gasoline cars cost $15,000-20,000 but will consume $2,500 per year in fuel. (Based on Canadian fuel prices, which works out to about $4 per gallon.)
* hybrids and diesel cars cost around $30,000 and consume about $1,200 per year in fuel. O&M costs are the same or slightly higher than conventional cars. (Hybrids have more components to break, and deisels require more expensive oil changes.)
* 100% electric cars cost $35,000 to $40,000, but the energy cost is $500-800 depending on local electricity prices. However, with only an electric drive system, maintenance is streamlined and less expensive (in theory). No oil changes, no radiator, no engine air filters...
* Looking at 5-year costs, a hybrid is nearly the same as a small high-performance conventional car like the 200 HP Honda Civic Si or a Mini Cooper S.
If you're looking at keeping the car only 3-5 years, your best bet is to buy a fuel-efficient car with a conventional engine that meets your family's needs.
If you plan to keep your car 10 years or more, and you're concerned that fuel prices will double or triple within 3-5 years, you may want to consider investing in more sophisticated engine technology (hybrid, diesel, or electric).
If you drive primarily in the city (very little +60 mph), and never more than 100 miles in a day, a 100% electric car might be ideal.
What have I decided?
1. I'm going to keep my '98 Civic running as long as I can. New cars are expensive, and not much better for fuel consumption.
2. I need to look at more vehicles and evaluate my priorities. Especially the fun-factor. (I'd love a Cooper Mini S. Or a Jetta TDI.)