Mercedes-Benz 560 SEC

vs

Cadillac XLR-V

Germany vs USA — 1986 vs 2006

Mercedes-Benz 560 SEC (1986)
Cadillac XLR-V (2006)
Specifications
560 SEC W126XLR-V Supercharged Northstar
Horsepower300 hp443 hp
Torque336 lb-ft414 lb-ft
Engine Size5,547 cc4,371 cc
0-60 mph6.3 sec4.6 sec
Top Speed155 mph155 mph
¼ Mile14.6 sec13.0 sec
Weight3,902 lbs4,022 lbs
Wheelbase2,850 mm2,685 mm
Length4,935 mm4,515 mm
Units Produced28,9292,485
Original MSRP$73,500$98,290
Value (Excellent)$80,000$55,000
Collectibility7/106/10
Rarity5/108/10
The Verdict

The 2006 Cadillac XLR-V Supercharged Northstar emerges ahead in most objective measures, offering more power, quicker acceleration, greater rarity. The 1986 Mercedes-Benz 560 SEC W126 counters with stronger collectibility, but the numbers favor its rival. Still, both are remarkable machines, and the final choice often comes down to which driving experience speaks to you.

Overview

When Germany engineering meets USA craftsmanship, the result is one of the most compelling matchups in the classic car world. The 1986 Mercedes-Benz 560 SEC W126 and 2006 Cadillac XLR-V Supercharged Northstar embody their respective national automotive traditions while competing in the same arena. The 2006 Cadillac XLR-V Supercharged Northstar holds a clear advantage in raw power with 443 hp compared to 300 hp, a 143-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Mercedes-Benz 560 SEC uses a V8 SOHC 16V displacing 5,547 cc, while the Cadillac XLR-V relies on a V8 DOHC Supercharged (Northstar LC3) with 4,371 cc. In the sprint to 60 mph, the 2006 Cadillac XLR-V Supercharged Northstar edges ahead at 4.6 seconds versus 6.3 seconds. Rarity plays a significant role here — with only 2,485 units built, the 2006 Cadillac XLR-V Supercharged Northstar is considerably scarcer than the Mercedes-Benz 560 SEC's 28,929 examples. Both trade at comparable values on the collector market, making the choice between them largely one of personal preference.