De Tomaso then built a Formula One chassis (designed by Gian Paolo Dallara) for Frank Williams Racing Cars to use in the 1970 Formula One season. The car was uncompetitive, failing to finish the first four races of the year. In the fifth, the Dutch Grand Prix, the &lt;a href="De%20Tomaso%20505/38"&gt;De Tomaso 505/38&lt;/a&gt; flipped and caught fire, killing driver Piers Courage. The team persevered, first with Brian Redman, then Tim Schenken. However, with no results, the partnership was dissolved at the end of the season.