Scuderia Lancia Scuderia Ferrari Scuderia Ferrari Porsche KG Porsche KG Porsche KG SpA Ferrari SEFAC SpA Ferrari SEFAC R.R.C. Walker Racing Team / Shelby American Inc. SpA Ferrari SEFAC Scuderia Filipinetti Scuderia Filipinetti Scuderia Filipinetti Lancia Marlboro 