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 layer style effect to paint drops.
- Add Splatter effect using splatter brush to the front wheel.
- Merge all layers. Apply Auto Contrast.
- Create new white layer with Fill=0%.
- Apply Gradient Overlay to it.
- Merge layers again.
- Correct levels just like in the example below.