You may get .psd* file of "Luxury retro car poster with paint splashing effect. Talbot-Lago T-150 CSS" Photoshop tutorial by making a payment. Put the tutorial title in "Add special instructions to seller" line of PayPal and it will be sent to you shortly.
- Apply Gradient Overlay to merged layer.
- You may add vintage effect. Insert old paper texture, make it black & white, apply Soft Light Blending Mode and Opacity 40%.
And here is result, click to make it larger.