The F-150 attracted 473,933 buyers this year, making it the No. 1-selling vehicle for 2008--it's been the best-selling vehicle in America[b] for 27 years running[/b]. Another 431,725 buyers drove off Chevrolet lots in a Silverado.

gas-guzzlers that don't serve a purpose Nissan Armada, which rolls in at No. 5 among the worst-selling vehicles so far this year. Armada sales are off 49.1% this year compared to last year, with only 14,753 buyers purchasing the big and brawny SUV. It gets a combined 14 mpg.

As bad of a year as it's been for sales of the aforementioned Armada, it's not the worst-selling vehicle in 2008. That title goes to Hyundai Entourage minivan, with only 5,405 sold this year. 
Joining the Armada, Entourage and Pacifica in the top five worst-selling vehicles are the Mitsubishi Endeavor, with only 5,687 units sold through November, and the Hummer H2, with only 5,721 sold

many fuel-efficient small cars have seen very strong sales in 2008.
such as the
Honda Civics 352,248   The gas-powered Civic gets 29 mpg  while the even more efficient hybrid version, which gets a combined fuel economy of 42 mpg

184,152  for the Ford Focus

buttom line Nigerians dont care if cars are fuel guzzlerzz especially the love for SUVs we just love flashy things even @ 9mpg
                             Details from yahoo autos and cars.com

Any contribution is welcomed

rightly said my good man, ur last sentence says it all, the average Nigerian just dont care about fuel consumption and yet we complain about high fuel price, seriously, what is wrong with us?

back to the main topic, that trend will continue for the next 3- 4 years to come, Big gas guzzlers don't float ppls boat anymore, smaller cars will sell much more than big ones as we gradually run out of fossil fuel,