2018 Porsche 911 Gt3

Sports Car Premium
Porsche 911 Gt3 2018
17MPG Combined
2 Trims
Updated February 27, 2026

Get the full picture on the 2018 Porsche 911 Gt3. As a Sports Car, it achieves 16–17 combined MPG depending on trim and has not yet been rated by NHTSA. Below you’ll find detailed specs for every trim, plus recall information and competitor comparisons.

2018 Porsche 911 Gt3 Specifications

SpecValue
Combined MPG16–17 combined MPG depending on trim
City MPG15
Highway MPG21
Body StyleSports Car
Fuel TypePremium
DriveRWD
Available Trims2

Available Trims

TrimMPG (City/Hwy/Combined)EngineTransmission
6 cyl15/20/174.0L 6cylAutomatic (AM-S7)
Man13/21/164.0L 6cylManual 6-spd

Annual Fuel Cost

Based on EPA estimates, the 2018 Porsche 911 Gt3 costs approximately $3,550 per year in fuel. This assumes 15,000 miles driven annually and current fuel prices.

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