78 buick skylark came with 3.8 liter (231 cu-in) V6 rated at 115 hp. The MSRP was $4,999. The optional AM radio was $82. The factory AC never really worked so I don't know how I survived the SoCal summers. I spent most of my weekend fixing it just so that it can be driven on Monday. It was finally retired when the odometer hit 50,000 miles. I added a 'go-fast' racing stripe so must have added 10 horse power. The top speed was 55 mph downhill.