Mechanical changes include the new variable ratio, speed sensitive steering system and the addition of a new entry-level model, the SL 280 that’s equipped with a 3.0-liter V6 delivering 231 HP and a maximum torque of 300 Nm or 231 lbs/ft. Also, Mercedes replaced the SL 55 AMG with the SL 63 AMG which features a naturally aspirated 6.2-liter V8 engine delivering 525 HP and 630 Nm of torque (SL 55 AMG: 5.5-liter supercharged V8 with 517 HP and 720 Nm of torque). -Image gallery after the jump