The Mk3A appeared in the final race of the 1968 season, there were revisions to the suspension, magnesium uprights were fitted and the chassis was stiffened with sheet metal panelling. Only the single car was built and sold to Ben Moore who entered it for Charles Lucas. The car was still competitive, Lucas won at Silverstone, but Lucas Engineering seemed more interested in developing their growing engine building business and the car fell away as the season progressed.
Wheelbase: 94.5 ins.
Track: front 53.5 ins. rear 56.75 ins.
Wheels: 13 ins.
Trevor Blokdyk, Peter Gaydon, Leo Kinnunen, Charles Lucas, Roy Pike, Alan Stubbs, Tim Schenken, Ole Vejlund.
Mike Campbell, Bill Dunne, Alan Harvey, Leo Kinnunen, Per Kjellberg, Alan Stubbs.
Terry Chawner, Mikko Kozarowitsky.