How should the Chevrolet Volt’s energy use be calculated?

GM plans to launch the Chevrolet Volt in 2010. The Volt runs on battery power for the first 40 miles or so, and after that a small gas engine will cycle on as needed to recharge the batteries. Plug-in versions of parallel hybrids, where the engine can directly power the wheel, are also coming. Earlier today I learned of an interesting discussion… More →

Where’s my car?

Back in 2001 the Toyota Altezza arrived in the U.S. as the Lexus with a price in the low 30s. The interior didn’t seem worthy of a Lexus, and the price was beyond the reach of many who would otherwise buy a small rear-drive sedan. Ever since then I’ve been waiting for a manufacture to fill an obvious hole in… More →

Filter results on TrueDelta’s Fuel Economy Survey

Sometimes when I have an idea, I wish I’d implemented it much earlier. This is one of those times. I’ve been planning all along to eventually analyze results of TrueDelta’s Fuel Economy Survey to generate figures for straight city driving, straight highway, the impact of A/C use, and so forth. Problem is, with so many variables, this is going to… More →

GM’s decision to kill its future V8: nearsighted or farsighted?

The Detroit News reported this morning that GM has decided to kill a $300 million program for a new DOHC V8 to replace the circa-1992 Northstar engine. Rising oil prices and the new CAFE standards were given as reasons. But this will leave GM without a competitive DOHC V8. So are they just successfully reading where things are heading, or over-reacting… More →

About the left lane

I drove 700 miles yesterday, and for the most part the trip was uneventful. But while driving around DC it became painfully obvious that most drivers in that part of the country (and probably most other parts as well) either don’t know or don’t care how to properly use the highways. I’m speaking specifically about the common practice of sliding… More →

Assumptions made by the CNW “lifetime energy cost” report

A few weeks ago I posted a critique of CNW’s lifetime energy cost report, which controversially concluded that a Prius uses up more energy per mile over its lifetime than a Hummer. My critique then was based simply on the ridiculously high cost per mile figures the report included. From this I inferred that some untenable assumptions were made by… More →