Nielsen’s latest automotive industry overview tracked the online conversations, and the steadily declining price, of diesel over the last 12 months. Though diesel has been a hot topic within alternative fuel buzz at times, a downward trend in discussion over the past year speaks to a decline in consumer interest.
Findings & Analysis:

Total diesel buzz decreased 28% from June ‘08 to June ‘09, while diesel fuel fell by $2.15 per gallon or 45%
Domestic trucks and German cars are most prominently mentioned within diesel buzz
Mercedes-Benz and BMW are gaining share of diesel …

From October to November 2008, online consumer references to a potential government bailout of U.S. domestic automotive manufacturers grew by more than 380%, according to an analysis of auto-related blog discussions released Wednesday by Nielsen Online.
In mid-November, following GM released its quarterly earnings report – which highlighted the gravity of the Big Three Automakers’ financial situation, and online consumers began comparing the potential auto bailout to the U.S. government’s bailout of the financial industry or the Chapter 11 benefits/consequences of the airline industry.
Around November 21, the first Congressional bailout hearings spurred consumers’ opinions …