Can You Beat Gran Turismo 4 Without Upgrading Any Cars?

Can you, or in this instance I beat gran turismo 4 without upgrading a single car? Well this challenge won't be easy, but let's do it!    • Gran Turismo 4   Live At Random Times On Twitch:   / thegamingdefinitiontv   SkyPAD Link: https://www.skypad-gaming.com/tgd (Code: TGD) Business Enquiries: [email protected] Linktree for all important links: https://linktr.ee/TheGamingDefinition Discord channel | Best way to stay up to date with streams, future content & interact with the community and me:   / discord   ----------------------------------------------------------------------------------------------------------------- Channel Membership & Donations Want to donate and support the channel: http://bit.ly/TGDDonate BECOME A MEMBER & GET COOL EMOTES ON YOUTUBE! From £1.99: http://bit.ly/TGDMembership ----------------------------------------------------------------------------------------------------------------- Specs/Sens/Peripherals Same sens for all CoDs BO4 onwards: 1800 DPI | 4.8 sens relative | 1.78 coefficient | Default windows sensitivity Graphics preference: Typically all lowest in every multiplayer game. Gaming PC CPU: Intel Core i9 11900K GPU: EVGA NVIDIA GeForce RTX 3080 Ti RAM: 32GB (2x16) G.SKILL 32GB Trident Z NEO RGB DDR4 3800MHz PSU: Corsair RM750x - 80PLUS GOLD Cooling: Corsair Hydro H150i RGB PRO XT 360mm AIO MOBO: ASUS ROG STRIX Z590-F GAMING WIFI Other Keyboard: Logitech G512 (Looking for an upgrade) Mouse: G502 Lightspeed (Not the newest one) Gaming Monitor: HP Omen 240hz 1440p Mousepad: SkyPAD 3.0 Headphones: Audio Technica ATH-M50x Microphone: Blue Yeti Capturecard: Elgato HD60 0:00 Introduction/Explanation# 2:02 Sunday Cup 3:23 FF Challenge 7:40 FR Challenge 10:29 4WD Challenge 11:29 MR Challenge 17:20 K Cup 19:18 Spider/Roadster 22:29 Truck Simulator 27:08 Clubman Cup 32:27 Tuned Car Cup 39:56 NA Cup 42:18 Turbo Cup 43:08 Boxer Spirit (Very Hard) 47:00 Boxer Race 2 (EXTREMELY HARD) 52:25 World Classics 55:55 Tokyo Drift 56:40 Compact Car Cup 59:40 Supercar Cup 1:07:45 GTWC Planning 1:08:52 Nostalgic Rally Moments 1:12:00 GTWC Begins 1:12:32 Race 1 1:14:45 Race 2 1:18:50 Race 3 1:25:00 Race 4 1:27:25 Race 5 1:29:00 Race 6 1:33:26 Race 7 1:36:50 Race 8 1:41:20 Race 9 1:43:17 Race 10 1:49:25 Results 1:51:05 Bottom Gear?