Beta Backyard Kart 0.17.6

This was the most work I've put into a mod lol. It is much more stable now in all configurations, aside from the tires, that is. Full changelog below:

• Frames
  • All frames have had their beam structure redone
    • This ranges from minor weight tweaks to full-on rebuilds to different sections
  • The front subframe can now be broken off
  • The Independent rear subframe is more durable
  • The entire frames can now be deformed
    • This doesn't look entirely good in some spots, but it makes crashing feel a lot better
• Front Suspension
  • This is where I spent the most time the last couple of weeks
  • The front wheels are much less likely to wiggle at speeds under 100mph
  • Using extreme alignment no longer bends the front subframe
    • The beams in the front subframe now apply precompression to resist the caster and camber adjustments
  • Changed the front arm geometry
    • They are able to move more freely now without flapping
  • Introduced pre tuned Sport coilovers
    • These have a smaller travel range than the standard coilovers
    • They are overall stiffer than the standard coilovers without sacrificing drivability like the heavy coilovers
    • They are designed to be the "normal" street coilovers
  • Introduced Adjustable Race suspension
    • These have very little suspension travel
    • They are still fully adjustable, but have ranges that make more sense
  • Slightly changed hub shape
• Rear Suspension
  • The raised axle is completely redone
    • It no longer vibrates on its own under normal racing stress
    • The vibrations that exist now are all due to the tires
  • The standard axle was changed a little bit
  • The independent rear suspension was completely changed
    • A new beam structure for the subframe
    • Arm positions were slightly changed
    • Rear Hubs were completely redone
      • They are now much more stable and have the groundwork for possible rear steering
  • Rear coilovers have been retuned
  • Introduced Sport and Race coilovers to match the front
• Engines
  • The 250cc and 450cc engines have a new model
  • Introduced a 750cc engine
  • Added exhaust to all engines
  • Tuned thermals of all engines
    • I didn't have the attention span to seriously test all of them
• Transmissions
  • Changed all transmissions to sequential
  • Added a crawler transfer case
• Rims
  • Rims have been further refined and do not cause instability at speed
• Tires
  • Tires are still a pain for me, but they are getting closer to something I can live with
• Configs
  • All configs received a more fine tuning than before
    • I based the tuning on tips from communities that the configs are inspired from.
    • The welded front race configs are based on kart tuning
    • The standard configs are based on the IRL kart
    • The sport configs are based on road cars
    • The IRS race configs are based on race cars
    • The Short Course or SC configs are based on UTV and ATV tuning
  • Added two new configs
    • 750cc SC
      • SC stands for Short Course, referring to the offroad racing style
      • It uses stiffer suspension and 4-wheel drive
    • 1000cc SC
      • Pretty much just the 750cc config with a bigger engine slapped on.
• Meshes
  • Added new meshes for the 250 and 450cc engines
  • Adjusted meshes I thought looked bad
• Textures
  • Changed some textures from png to dds
• Dummies
  • Adjusted node placements
  • Added triangles to the feet so they do not phase through the front panels
• Aero
  • Tweaked node structure to better match the meshes
  • Added wings with a more realistic downforce
    • The current ones have 20x what they should
  • Added a much wider front wing
    • That comment from Muye on the tiny front wing stuck with me for some reason
  • Adjusted drag coefficients of all other faces

Known issues (generally won't affect the kart too much

• The Dummy's right arm sometimes does a little wiggle
• Some of the race configs will cause instability when crashing at ridiculously high speeds (100+ mph)
• I forgot to update the chain mesh for the raised axle 250cc and 450cc engines
• Tires are still unstable under very hard cornering (2G+) or at high speed (140 mph+)
  • Half of the reason for the unrealistic wings is that the extreme downforce helps keep the tires stable at higher speeds