• 2018 in motorsport by country (29 C)

0–9

• 2018 in 24H Series (5 P)

A

• Auto racing teams disestablished in 2018 (10 P)
• Auto racing teams established in 2018 (6 P)

B

• 2018 Blancpain GT Series (4 P)

E

• 2018 European Rally Championship season (1 P)

F

• 2018 in formula racing (6 C, 33 P)

G

• 2018 GP3 Series round reports (9 P)

I

• 2018 in IndyCar (17 P)
• 2018 Intercontinental GT Challenge (5 P)

M

• 2018 in motorcycle sport (6 C, 23 P)

N

• 2018 in NASCAR (3 C, 12 P)

R

• 2018 in rallying (1 C, 15 P)
• 2018 Red Bull Air Race World Championship season (1 P)

S

• 2018 Super GT season (3 P)

T

• 2018 in TCR Series (20 P)

V

• 2018 in Supercars (17 P)

W

• 2018–19 FIA World Endurance Championship season (10 P)
• 2018 in World Rallycross (14 P)

• 2018 in motorsport
• 2018 in rallycross

*

• List of 2018 motorsport champions

0–9

• 2018 24H Proto Series
• 2018 24H GT Series
• 2018 24H TCE Series
• 2018 GT Series Sprint Cup
• 2018 Historic Grand Prix of Monaco

A

• 2018 Alpine Elf Europa Cup
• 2018 Americas Rallycross Championship
• 2017–18 Asian Le Mans Series
• 2018–19 Asian Le Mans Series

B

• 2018 Blancpain GT Series
• 2018 Blancpain GT Series Asia
• 2018 Blancpain GT Sports Club
• 2018 BOSS GP Series

E

• 2018 European Le Mans Series
• 2018 FIA European Rallycross Championship
• 2018 European Truck Racing Championship

F

• 2018 F1 Powerboat World Championship
• 2018 Ferrari Challenge Europe
• 2018 Ferrari Challenge North America
• 2018 Formula 2 Championship
• 2018 FIA GT Nations Cup
• 2017–18 Formula E Championship
• 2018–19 Formula E Championship
• 2018 Formula Renault Northern European Cup
• 2018 Formula Renault Eurocup
• 2018 Formula STCC Nordic

G

• 2018 GP3 Series
• 2018 GT & Prototype Challenge
• 2018 GT4 Belgium Cup
• 2018 GT4 Central European Cup
• 2018 GT4 European Series
• 2018 GT4 International Cup

H

• 2018 H1 Unlimited season

I

• 2018 IndyCar Series
• 2018 Intercontinental GT Challenge
• 2018 International GT Open

J

• 2018–19 Jaguar I-Pace eTrophy

L

• 2018 24 Hours of Le Mans
• 2018 Le Mans Cup

M

• 2017–18 MRF Challenge Formula 2000 Championship
• 2018–19 MRF Challenge Formula 2000 Championship

P

• 2018 Porsche Supercup

R

• 2018 Race of Champions
• 2018 Red Bull Air Race World Championship
• 2018 Formula Renault seasons
• 2018 Russian Circuit Racing Series

S

• 2018 Supercar Challenge

T

• 2018 TCR Series seasons

V

• 2018 V de V Challenge Monoplace

W

• 2018–19 FIA World Endurance Championship
• 2018 World Rally Championship
• 2018 FIA World Rallycross Championship
• 2018 FIA WTCR Race of Morocco
• 2018 World Touring Car Cup