Table:
0
A
B
C
D
E
1
Year
Entrant
Chassis
Engine
Points
2
1979
Team Ensign
Ensign N179
Cosworth V8
0
3
1980
Team ATS
ATS D3
Cosworth V8
0
4
1980
Team ATS
ATS D4
Cosworth V8
0
5
1981
Ensign Racing
Ensign N180B
Cosworth V8
4
6
1981
Theodore Racing Team
Theodore TY01
Cosworth V8
4
7
1982
Arrows Racing Team
Arrows A4
Cosworth V8
3
8
1982
Arrows Racing Team
Arrows A5
Cosworth V8
3
9
1983
Arrows Racing Team
Arrows A6
Cosworth V8
4
10
1984
Barclay Nordica Arrows BMW
Arrows A6
Cosworth V8
1
11
1984
Barclay Nordica Arrows BMW
Arrows A7
BMW Str-4 t/c
1
12
1985
Motor Racing Developments Ltd.
Brabham BT54
BMW Str-4 t/c
5
13
1986
Barclay Arrows BMW
Arrows A8
BMW Str-4 t/c
0

Questions and formulas:
Question: How many years did Barclay Nordica Arrows BMW enter with Cosworth v8 engine?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,(B1="barclay nordica arrows bmw")*(D1="cosworth v8")),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E13,(B2:B13="barclay nordica arrows bmw")*(D2:D13="cosworth v8")),1))
Level: medium
Question: How many years did barclay nordica arrows bmw enter with a bmw str-4 t/c engine with less than 1 point?
Formula: LET(query1,LET(query1,FILTER(A1:E1,(D1="bmw str-4 t/c")*(B1="barclay nordica arrows bmw")),SUMMARIZE(CHOOSECOLS(query1,1),SUMX(CHOOSECOLS(query1,5)))),FILTER(query1,CHOOSECOLS(query1,2)<1))
Formula2: LET(query1,LET(query1,FILTER(A2:E13,(D2:D13="bmw str-4 t/c")*(B2:B13="barclay nordica arrows bmw")),SUMMARIZE(CHOOSECOLS(query1,1),SUMX(CHOOSECOLS(query1,5)))),FILTER(query1,CHOOSECOLS(query1,2)<1))
Level: hard
Question: How many years was ensign n180b a Chassis with 4 points?
Formula: LET(query1,LET(query1,FILTER(A1:E1,C1="ensign n180b"),SUMMARIZE(CHOOSECOLS(query1,1),SUMX(CHOOSECOLS(query1,5)))),FILTER(query1,CHOOSECOLS(query1,2)=4))
Formula2: LET(query1,LET(query1,FILTER(A2:E13,C2:C13="ensign n180b"),SUMMARIZE(CHOOSECOLS(query1,1),SUMX(CHOOSECOLS(query1,5)))),FILTER(query1,CHOOSECOLS(query1,2)=4))
Level: hard