Let's see if I recall this correctly from my RX-7 days...
Black smoke - Rich, fuel
Grey smoke - Coolant, normally head gasket
Blue smoke - Oil, normally turbo.
Sounds to me like something went MAJORLY wrong during your show-off period. If you got all three smoke colors, I'd be very, very concerned. Start with a compression test. If needed, follow with a leak down test. Remove the turbo and inspect. Heck, I'd probably even use a borescope and do a visual on the engine internals.
I can imagine very few scenarios where you'd get three different smoke colors. Hrm... I'll make one up. Spark plug broke, sending the unburned air/fuel into the exhaust manifold along with the tip of the plug, which banged around in your (water-cooled?) turbo, unbalancing/damaging it enough to leak coolant and oil... But even with that, you'd only see the dark smoke, not three different variants.