head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.

Execution · Twitch Chaos
N64 couch classic where blue shells and shortcuts decide friendships.

Execution · Pure Mechanics
Demolition derby racer with destructible PvP chaos.
Mario Kart 64 leans Execution (Twitch Chaos); Wreckfest leans Execution (Pure Mechanics).
Wreckfest leans a little harder on execution, though the gap is small.
Mario Kart 64
Mini-turbo snaking and shortcut execution
Wreckfest
Demolition driving, ramming angles
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Mario Kart 64
Couch rivals bait shells and fakes
Wreckfest
Online derby PvP rewards ramming reads
Mario Kart 64 leans a little harder on variance, though the gap is small.
Mario Kart 64
Item draws swing every race
Wreckfest
Crash physics chaos
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Mario Kart 64
Shortcut and line knowledge is fully mapped
Wreckfest
Car upgrades and durability tuning
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.