Brabham BT45C Niki Lauda Argentine GP 1978 1:43 scale Spark Resin Model This Brabham BT45C (Argentine GP 1978 driven by Niki Lauda) resin model is red. 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.