Complex sentence: The F8 made it's debut at the 1980 British Grand Prix but only one car was ready and was driven by it's co-owner, Barazilian Emerson Fittipaldi and finished 12th and teammate Finland's Keke Rosberg failed to qualify the older Fittipaldi F7.
Split into simpler sentences: The F8 made its debut at the 1980 British Grand Prix but only one car was ready. Driven by its co-owner, Brazilian Emerson Fittipaldi, it finished 12th and teammate Finland's Keke Rosberg failed to qualify the older Fittipaldi F7.