6. Mercedes-Benz E430 (W210, 1998-2002, Manual Swap)
The Mercedes-Benz E430 (W210) combines the comfort of a luxury sedan with the punch of a 4.3-liter V8 and rear-wheel drive. While U.S. models only came with automatics, enthusiasts have discovered that a manual swap—using parts from European-market manual W210s—is both feasible and rewarding. This conversion transforms the E430 into a stealthy, V8-powered sleeper that’s surprisingly affordable. It’s a rare blend of German refinement, understated style, and genuine driving involvement. Read more about the W210 E430 manual swap at CarThrottle.