Trackmania Blitz is time-trial racing in the Trackmania spirit: short stunt tracks, a clock, and a restart button you'll press constantly because the whole game is shaving tenths off a run you already know.
That instant restart is the design. Failure costs nothing, so you attempt the risky line rather than settling for the safe one.
Time trials on short stunt tracks — you race the clock rather than opponents, restarting instantly to improve your line.
Learn the track first, then optimise one section at a time. Attempting the whole lap perfectly from the start is slower than incremental improvement.
Yes — it runs in the browser with nothing to install.