A cold rolled steel sheet, the steel containing, in weight percentage, 0.19%≤carbon≤0.24%, 1.9%≤manganese≤2.2%, 1.4%≤silicon≤1.6%, 0.01%≤aluminum≤0.06%, 0.2%≤chromium≤0.5%, phosphorus≤0.02%, sulfur≤0.003%, the balance including iron and unavoidable impurities, the steel sheet having a microstructure containing 5% to 15% of tempered martensite, 10% to 15% of residual austenite, the balance containing bainite, bainite content being at least 70%, is described. Also described is a manufacturing method and with use of such grade for making vehicle parts.