Table:
text: Clay Regazzoni
Complete Formula One World Championship results
Complete Formula One World Championship results
Year_ Entrant Chassis Engine Points
1970 Scuderia Ferrari SpA Ferrari 312B Ferrari Flat-12 33
1971 Scuderia Ferrari SpA Ferrari 312B Ferrari Flat-12 13
1971 Scuderia Ferrari SpA Ferrari 312B2 Ferrari Flat-12 13
1972 Scuderia Ferrari SpA Ferrari 312B2 Ferrari Flat-12 15
1973 Marlboro BRM BRM P160D BRM V12 2
1973 Marlboro BRM BRM P160E BRM V12 2
1974 Scuderia Ferrari SpA Ferrari 312B3 Ferrari Flat-12 52
1975 Scuderia Ferrari SpA Ferrari 312B3 Ferrari Flat-12 25
1975 Scuderia Ferrari SpA Ferrari 312T Ferrari Flat-12 25
1976 Scuderia Ferrari SpA Ferrari 312T Ferrari Flat-12 31
1976 Scuderia Ferrari SpA Ferrari 312T2 Ferrari Flat-12 31

Question: What is the earliest year that a Ferrari 312t chassis and results of 31 points have occurred under Clay Regazzoni?

Question: Considering Clay Regazzoni, what is the chassis if there are 25 points?