2000 BMW 528i: 193HP, 206lbft, 3549 pounds.
2000 LS V6: 210HP, 205lbft, 3598 pounds. Advantage: A draw to me (Lincoln wins in HP, but, IMHO, the torque and weight of the BMW balances that out).
2000 BMW 540i: 282HP, 324ftlb, 3803 pounds.
2000 LS V8: 252HP, 267ftlb, 3692 pounds. Advantage: No-brainer..... BMW
2003 BMW 528i: 225HP, 213ftlb, 3494 pounds.
2003 LS V6: 232HP 220ftlb, 3674 pounds. Advantage: Again, a draw, IMHO.
2003 BMW 540i: 290HP, 324ftlb, 3803 pounds.
2003 LS V8: 280HP, 286ftlb, 3755 pounds. Advantage: On paper the 540, in actual testing the LS.
1980 Ferrari 308 GTSi QV 205HP, 179ftlb 3366 pounds. A pretty quick car then, a sluggard now! The smallest LS engine puts out the same HP per liter as does that Ferrari. I wonder why Ferrari didn't put in a more powerful engine....... Hmmmmm........
As you can see, the LS was very competitive WHEN IT WAS RELEASED. Same as the Aston DB5, the E-Type and the Ferrari's OF THE DAY.