All above mentioned is 100% correct.. But what i will mention here is more advancced... i will cover not only secrets.. but useing glitches that can be used for fullspeed tracks that will cut your time allot.
Firstly... hugging corners... not only for fullspeed.. but all tracks.. hug the corners.. a left hand turn stay as far left as possible.. (both tires in the black piece right next to the black barrier.
Secondly.. when racing on tracks like moving power... any really smooth tracks.. and you have a road that comes to an end? right at the end of it you have two options to cut 2-6 splits secs on landing (in smooth tracks that is allot.. you can
A) Just before you lift off the end of the ramp, hard left, hard right then hard left again.. this will set your car off balance... making it go left or right.. in turn making your tires touch the ground 5 splits sooner...
B) and my fav is actually a glitch.. if you ride on the black of the track, right against the rim of the track,, you will glitch and your car will be offset.. in turn.. making your car land sooner..
Now.. the hardest glitch of them all.. and 2nd hardest thing to perfect in track mania is speed sliding... (no not powersliding) its a fs glitch that increases your time dramatically... basically.. you drift over your front tires drifts... extremely difficult to hold with a keyboard... but this slide will take 25 splits off a simple straight long turn..
k.. lastly.. you get many tipes of boosts.. now noob tracks have the boosts that flicker? where you can get 100%, 150% or 200% boost...
going straight at it.. will mostly give you 100% boost... (Bad)
Slightly being offset just before a boost at a start will let you get 150% boost... (better)
Now the only way that i know to get 200% boost when a boost right in front of the start is to only pull away at exactly .40 sec in your run.. meaning.. timer will count down 3, 2, 1 then bang.. the timer will start running.. leave forward until the clock reaches .40 (or when you cars shocks come back up) that will give you 200% boost (best you could hope for).
well.. thats all i can help with with fullspeed tracks... loops and wallrides sin shock covered.. when i feel like typing another book.. il help with tech...
enjoy guys.. and good luck