We've recently released the Soviet BTR-50 amphibious armoured personnel carrier.

3 variants are available:
BTR-50P - Open topped.
BTR-50PK - With an armoured roof
BTR-50PU - Command version

Prices
6mm is £0.80
12mm is £2.50
15mm is £3.75
20mm is £7.50
28mm is £16.00

The model is available in all scales.

LINK