Just purchased a 197 and taken it on a couple of track days. 1st track day used about 2.5ltrs of oil and was burning oil quite noticeably at high revs. Engine runs sweet as a nut 2nd track day did about 2 litres again (topped up throughout the day) Had the breathers checked, all fine. Compression test came back all fine. Any other ideas on what could be causing the issue, mechanic said it could be possible piston rings but worth an ask 1st in case there is some knowledge of anything else it could be ? 94k on the clock and been serviced, belts etc all changed so service history seems to show its been well maintained.