New Car 2018 - New Car Prices 1975. What Happened in 1975 inc. Pop Culture, Prices Significant - How Much things cost in 1975 Yearly Inflation Rate USA9.2% Year End Close Dow Jones Industrial Average 858 Interest Rates Year End Federal Reserve 7.25% Cost of a gallon of Gas 44 cents Average cost new car$4,250.00 Below are some Prices for UK guides in Pounds Sterling. 1975 Chevrolet New Car and Truck Advertisements - Retrotisements — 1975 Chevrolet New Car and Truck Lineup October 16, 2012 February 19, 2013 by Chris Holmes I wouldn’t go so far as to say that 1975 was a great year because that’s when I was born but it’s totally the case. And that’s pretty much all the inspiration behind the choice for this car capsule. It features. Welcome to inthe70s, Prices in the Seventies - Prices in the Seventies This is a list of prices as they increased over the years. These are the average price paid, not specific to any brand or region of the country. These are the average price paid, not specific to any brand or region of the country..