The latest update was installed on Gran Turismo Sport on September 26, 2019.
You can now take photos of cars with raindrops on them in the special featured section.
The following is a list of contents included with Update 1.45:

1. Four new vehicles, including classic Chevrolets and 1970's sports cars, join the lineup.

Chevrolet Corvette Stingray Racer Concept ’59 (Gr.X)

Chevrolet Camaro ZL1 1LE Package '18 (N700)

Ferrari 365 GTB4 '71 (N400)

Dodge Super Bee '70 (N300)

2. Drive the Tokyo Expressway in the wet.

"Wet Conditions" are now available on the Tokyo Expressway - Central Outer Loop and Tokyo Expressway - East Outer Loop.

Tokyo Expressway - Central Outer Loop

Tokyo Expressway - East Outer Loop

3. Seven new rounds for GT League.

■ Beginner League
Two new rounds have been added to Stars & Stripes.

■ Amateur League
Two new rounds have been added to Group 3 Cup.

■ Professional League
Two new rounds have been added to La Festa Cavallino.

■ Endurance League
One new round has been added to the Gr.1 Prototype Endurance Series.

4. Michelin's logo will be appear throughout the game as part of our new partnership.

■ Brand Central
A new Michelin section has been added to Brand Central.

■ Car Settings Screen
Michelin will be featured on the Car Setting screen as our tire technology partner.

■ "FIA Gran Turismo Championships" in Sport mode
Michelin will be featured in the championships as the official tire supplier.

■ Tracks
Michelin logos will appear on billboards on certain tracks.

5. And these new features in the Museum and Scapes:

MUSEUM
A "Michelin" section is now part of the Museum.

SCAPES
You can now take photos of cars with with raindrops on them in the special featured section.

Various other features, improvements and repairs were addressed in this update. We hope you enjoy the continuing evolution of Gran Turismo Sport.