While playing Forza over the past two weeks since buying it I compiled a list of neat features I'd love to see in Forza 6 that Forza 5 either misses or would be made more complete. Apologies if any of my list has already been listed as I haven't read this thread through and through. Things that would in my mind make Forza 6 way cooler.
Upgrade shop. Engine swaps tell you the name of the engine or where the engine came from like they did in Forza 4.
Upgrade shop. More engines / swaps for cars.
Upgrade shop. Make mirrors replaceable / upgradeable for certain cars or all cars that heave real life modded version of wing mirrors.
Upgrade shop. Make headlights replaceable / upgradeable for certain cars or all cars that have real life modded versions of headlights.
Upgrade Shop. When upgrading some Exterior parts, make their appearance noticeable. i.e exhausts do not change from stock to upgraded part. This needs to be noticeable like tire width, tyre size, bodykit, wing, or wheels size are instantly noticeable.
Upgrade Shop allow more comprehensive part list even though its already great and far beyond GT6.
Upgrade shop. Allow all sizes of cars engine swap and conversion to be upgraded to even higher horsepower. i.e beetle or Mini only 700bhp, allow upto 1000bhp or more if it's possible in real life, allow lamborghini and GTR's, audi r8's to be upgraded to real life 1200bhp - 1800bhp - 2000bhp.
More Bodykits for cars not just modern honda or supra but for a wider range of e.g older and modern cars like an older peugeot 205 / maxi bodykits or rally etc...
Forzavista is worse than Autovista for Forza 5. In Forza 4 all the "Information Points" give you some running commentary on History and knowledgeable facts about the car. If not from the Top Gear Team from another new voice-over. I found Forza 5 very boring. It's more fun when their is knowledgeable facts and history especially with running commentary will vastly improve the customer / players experience with Forzavista.
Forzavista all cars have exploding imploading doors, trunk, hood.
Paint shop. Make the plastic front splitters or rear splitters paintable.
Paint shop. When tinting windows the windows actually look tinted.
Paint shop. Making certain stainless steel mirrors paintable e.g Mini Cooper.
Rear view inside cockpit does not show you the engine behind you. Allow both rear view outside view and allow inside 360 view of the whole cockpit.
Allow replays in "Test drive" mode.
Allow cars that use KERRS, or DRS to have working KERRS or DRS like Drive club allows P1 to have working DRS.
Create a Multiplayer Drag racing event with working Tree, allow cars to prepare and burn out wheels and allow disqualification if you go before the wait or count down time.
Forza 5 only have 17 tracks. Forza 4 had 19 or more. GT6 has 37 not counting variations of single tracks. Forza 6 needs to have more tracks than Gran Turismo 6 real life tracks.
Career Mode. To be more rewarding with either higher CR. More rewarding in the way GT6 is. ANd maybe higher credits or prizes or something. Longer races like in real life based on real events. Practice sessions, Qualifying, and ability to set lap count from low to high.
All 300+ Forza 5 cars have been completely remodeled. Forza 6 to build on the list that made Forza 4 great. Their were cars in Forza 4 such as Ferrari F40 LM or Gumpert Apollo, or SSC Ultimate Aero that are missing among many many more that I miss a LOT to drive. More modern and classic supercars, hypercars to be added that aren't in the game. Allow older 1980's sports cars that I grew up in not just super cars and hypercars. For example sports cars of the early or late 80's that were successful for Ford or Vauxhall.
Cavalier GSR / cavalier 4x4 turbo
Sierra Sapphire Cosworth 4x4 Turbo
Ford Escort RS Turbo
Vauxhall Cavalier SRI 130 / Cavalier Calibra
Vauxhall Nova SR, GSE,
Vauxhall Calibra 4x4 Turbo
Peugeot 106 rally
Pegeuot 306 GTI / Rally
Peugeot 405 4x4 Mi16 Le Mans
Lotus Carlton
De Tomaso
Pagani Zonda R
Older Ford Escort RS Cosworth pre 1990's
Koenisegg Agera One one
More RUF models.