Passat TDI vs Chevrolet Volt
Spurred by commentary here on Torque News in comments left on an article by Keith Griffin (see it here), I had a conversation with a Volt owner in California about her car. At the time of this writing, I have a 2012 VW Passat TDI SE Premium in my driveway as a loaned test vehicle from the manufacturer. Together, we compared notes and furthered the conversation that started in Torque News comments.
The Passat TDI SE is similar to the Volt in fittings and extras, though it does have some things that are of higher quality than the Volt such as the premium Fender sound system and powered seating. Downgrading some of those options to equalize the cars in that regard puts the MSRP for the Passat TDI at about $29,000. MSRP for the Volt is about $42,000 in comparable trim. Doing a sticker-to-sticker comparison, the Passat is obviously cheaper, but after taking in the federal tax rebate of $7,500, the Volt's price tag gets closer at $35,000. Some states have further incentives for purchasing a car like the Volt, but for this comparison, we're assuming a national average which means no state-level rebates or incentives.
Assuming a road trip, the range per vehicle on the highway is 796 miles in the VW and 379 miles for the Volt. For daily driving, numbers are more variable, but most Volt owners claim around 900 miles per tank of gasoline while my use of the Passat and a survey of Volkswagen forums shows that most TDI drivers are getting 820 miles per tank of fuel. Diesel fuel and the premium grade gasoline required for the Volt cost about the same, but tank capacities are different. So in today's fuel costs (roughly $4/gallon for diesel or premium gasoline), including a national average of $0.12 per kWh for electricity, the $60 fill up on the Passat is compared to a $42 fill-up on the Volt. For reference, I'm assuming two recharges per week from empty (80%) on the Volt's batteries, which seems fair even if it is not being depleted completely, but is being plugged in nightly.
Finally, we look at the cars themselves in terms of practicality and everyday use. The Passat is a larger car physically, with seating for five (comfortably) inside (compared to the Volt's 4), more trunk volume, etc. In safety, both cars rank about the same in IIHS tests. The VW has better handling and performance, however, with a slightly faster 0-60mph rating and a higher top speed. Riding in either car shows the Passat to have a more comfortable drive.
Warranties are the same at 36k/3 years basic. Where the Chevy Volt wins out is efficiency. It's miles per gallon combined is over 90 while the Passat TDI gets 31mpg in the city and 43mpg on the highway.