in good nick

in good nick (in good condition) {UK} — в прекрасной форме; в отличном состоянии

Example: It's an old car but it's still in good nick. — Это старая машина, но она в очень хорошем состоянии.

(Opp: [in bad nick])

see also
[at the peak];
[in the prime of life];
[alive and well]
[как огурчик]
in fine/good/high feather (in excellent form, health, or humor.)
at the height of one’s powers
on top form
at one’s best
mint condition