Brabham BT7 Dan Gurney Dutch GP 1963 1:43 scale Spark Resin Model This Brabham BT7 (Dutch GP 1963 driven by Dan Gurney) resin model is green. It is made by Spark & is 1:43 scale (approx. 10cm / 3.9in long). This model also comes in its own display case to keep it in perfect dust free condition.