Specifications Comparison: 2020 GMC Acadia vs 2017 GMC Acadia

Headroom

Trim	Eng.	Drive train	1st Row Headroom (in)	2nd Row Headroom (in)	3rd Row Headroom (in)
AT4	3.6L V6	AWD	40	39.6
Denali	2.0L I4	AWD	40	39.6	37.2
Denali	2.0L I4	FWD	40	39.6	37.2
SL	2.5L I4	FWD	40	39.6	37.2
SLE	2.0L I4	AWD	40	39.6	37.2
SLE	2.5L I4	FWD	40	39.6	37.2
SLT	2.0L I4	AWD	40	39.6	37.2
SLT	2.0L I4	FWD	40	39.6	37.2
AT4	3.6L V6	AWD	40	39.6
Denali	3.6L V6	FWD	40	39.6	37.2
Denali	3.6L V6	AWD	40	39.6	37.2
SL	2.5L I4	FWD	40	39.6	37.2
SLE	2.5L I4	FWD	40	39.6	37.2
SLE	2.5L I4	FWD	40	39.6	37.2
SLE	2.0L I4	AWD	40	39.6	37.2
SLE	2.0L I4	AWD	40	39.6	37.2
SLT	2.0L I4	FWD	40	39.6	37.2
SLT	2.0L I4	FWD	40	39.6	37.2
SLT	2.0L I4	AWD	40	39.6	37.2
SLT	2.0L I4	AWD	40	39.6	37.2

Trim	Eng.	Drive train	1st Row Headroom (in)	2nd Row Headroom (in)	3rd Row Headroom (in)
All Terrain	3.6L V6	AWD	40.3	39.6	37.2
All Terrain2	2.5L I4	AWD	40.3	39.6	37.2
Denali	3.6L V6	FWD	40.3	39.6	37.2
Denali	3.6L V6	AWD	40.3	39.6	37.2
SL	2.5L I4	FWD	40.3	39.6	37.2
SLE	2.5L I4	FWD	40.3	39.6	37.2
SLE	2.5L I4	AWD	40.3	39.6	37.2
SLE2	2.5L I4	FWD	40.3	39.6	37.2
SLE2	2.5L I4	FWD	40.3	39.6	37.2
SLE2	2.5L I4	AWD	40.3	39.6	37.2
SLE2	2.5L I4	AWD	40.3	39.6	37.2
SLT	2.5L I4	FWD	40.3	39.6	37.2
SLT	2.5L I4	FWD	40.3	39.6	37.2
SLT	3.6L V6	AWD	40.3	39.6	37.2
SLT2	3.6L V6	FWD	40.3	39.6	37.2
SLT2	3.6L V6	AWD	40.3	39.6	37.2
Limited	3.6L V6	FWD	40.3	39.6	38.4
Limited	3.6L V6	AWD	40.3	39.6	38.4

Trim	Eng.	Drive train	1st Row Headroom (cm)	2nd Row Headroom (cm)	3rd Row Headroom (cm)
AT4	3.6L V6	AWD	101.6	100.6
Denali	2.0L I4	AWD	101.6	100.6	94.5
Denali	2.0L I4	FWD	101.6	100.6	94.5
SL	2.5L I4	FWD	101.6	100.6	94.5
SLE	2.0L I4	AWD	101.6	100.6	94.5
SLE	2.5L I4	FWD	101.6	100.6	94.5
SLT	2.0L I4	AWD	101.6	100.6	94.5
SLT	2.0L I4	FWD	101.6	100.6	94.5
AT4	3.6L V6	AWD	101.6	100.6
Denali	3.6L V6	FWD	101.6	100.6	94.5
Denali	3.6L V6	AWD	101.6	100.6	94.5
SL	2.5L I4	FWD	101.6	100.6	94.5
SLE	2.5L I4	FWD	101.6	100.6	94.5
SLE	2.5L I4	FWD	101.6	100.6	94.5
SLE	2.0L I4	AWD	101.6	100.6	94.5
SLE	2.0L I4	AWD	101.6	100.6	94.5
SLT	2.0L I4	FWD	101.6	100.6	94.5
SLT	2.0L I4	FWD	101.6	100.6	94.5
SLT	2.0L I4	AWD	101.6	100.6	94.5
SLT	2.0L I4	AWD	101.6	100.6	94.5

Trim	Eng.	Drive train	1st Row Headroom (cm)	2nd Row Headroom (cm)	3rd Row Headroom (cm)
All Terrain	3.6L V6	AWD	102.4	100.6	94.5
All Terrain2	2.5L I4	AWD	102.4	100.6	94.5
Denali	3.6L V6	FWD	102.4	100.6	94.5
Denali	3.6L V6	AWD	102.4	100.6	94.5
SL	2.5L I4	FWD	102.4	100.6	94.5
SLE	2.5L I4	FWD	102.4	100.6	94.5
SLE	2.5L I4	AWD	102.4	100.6	94.5
SLE2	2.5L I4	FWD	102.4	100.6	94.5
SLE2	2.5L I4	FWD	102.4	100.6	94.5
SLE2	2.5L I4	AWD	102.4	100.6	94.5
SLE2	2.5L I4	AWD	102.4	100.6	94.5
SLT	2.5L I4	FWD	102.4	100.6	94.5
SLT	2.5L I4	FWD	102.4	100.6	94.5
SLT	3.6L V6	AWD	102.4	100.6	94.5
SLT2	3.6L V6	FWD	102.4	100.6	94.5
SLT2	3.6L V6	AWD	102.4	100.6	94.5
Limited	3.6L V6	FWD	102.4	100.6	97.5
Limited	3.6L V6	AWD	102.4	100.6	97.5