In the market for a new car. E63 or F10 M5?
In the area of engine there is no contest at all. The F10 M5's 4.4 L V8 engine cannot compete with the E63's mighty hand built 5.5 L V8 M157 engine. There is no replacement for displacement. If you put all bolt on Dinan power mods (tune, intake and exhaust) into the F10 M5 you will be at 675 Bhp and less than 700 lbs-ft or torque--for a cost of $8322 plus plenty of labor charges. By contrast, with just a simple tune into only from AMS ($3000) or Renntech ($3500), the E63 with the M157 engine will produce a staggering 700 (AMS) or 701 Bhp (Renntech) and 830 (AMS) or 839 (Renntech) lbs-ft of torque.
Also, the E63 has a much better engine sound. It just roars and sounds like a muscle car. The M5 pumps in sound through the stereo to simulate sound.
The E63 is also superior in road feel. It feels lighter and much more alive than M5 with much better steering feel. The M5 is hampered by a luxury car chassis that it shares with the 7 Series and Rolls Royce Ghost. It feels heavy and numb.
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Best of luck with your decision.
In the area of engine there is no contest at all. The F10 M5's 4.4 L V8 engine cannot compete with the E63's mighty hand built 5.5 L V8 M157 engine. There is no replacement for displacement. If you put all bolt on Dinan power mods (tune, intake and exhaust) into the F10 M5 you will be at 675 Bhp and less than 700 lbs-ft or torque--for a cost of $8322 plus plenty of labor charges. By contrast, with just a simple tune into only from AMS ($3000) or Renntech ($3500), the E63 with the M157 engine will produce a staggering 700 (AMS) or 701 Bhp (Renntech) and 830 (AMS) or 839 (Renntech) lbs-ft of torque.
Also, the E63 has a much better engine sound. It just roars and sounds like a muscle car. The M5 pumps in sound through the stereo to simulate sound.
The E63 is also superior in road feel. It feels lighter and much more alive than M5 with much better steering feel. The M5 is hampered by a luxury car chassis that it shares with the 7 Series and Rolls Royce Ghost. It feels heavy and numb.
Best of luck with your decision.




I find it interesting that BMW M just hired the former head of Audi quattro performance.
If you do go the M5 route make sure you do European Delivery if you can.




I'll admit once the Pilot Supersports get below 50% the car does get swirly.
Some things I do miss are the exhaust note, bottom end power and Distronic. I think the M5 overall as a complete package is the better car. Everybody's opinion is different, I really have no complaints about the car. For the dollar ratio I think it is a great. Also, the lease deals blow Benz out the water. Good luck it was a hard decision for me.
Last edited by abhatti55; Sep 25, 2014 at 05:26 PM.
I'll admit once the Pilot Supersports get below 50% the car does get swirly.
Some things I do miss are the exhaust note, bottom end power and Distronic. I think the M5 overall as a complete package is the better car. Everybody's opinion is different, I really have no complaints about the car. For the dollar ratio I think it is a great. Also, the lease deals blow Benz out the water. Good luck it was a hard decision for me.
For me, the E63's engine power, engine/exhaust noise and its all wheel drive winter traction and 0-100 acceleration advantage carried the day over the M5's better transmission, stereo, electronics, paint colors, flatter cornering, lease (but not purchase) price and, for me, looks. The E63 S just toasts the M5, even in C form, through the quarter mile and especially 0 to 60 although the M5 will reel it in at super speeds I never drive due to the greater high speed efficiency of rear wheel drive. You simply cannot tune an F10 M5 and get power and especially torque remotely approaching that produced by the E63's M157 engine. And I love power above all else. But I would never fault someone for getting the M5. It is a great car.
Last edited by sdg1871; Sep 25, 2014 at 06:00 PM.




Pros: DCT, HUD (it's really, really cool and very useful), electronics/idrive, feels more luxurious, tad cheaper especially if leasing, more used ones out there. Free maintenance. Lighting package is awesome. Soft close doors. Rear sunshades on the rear passenger doors (great if you have kids). Seat massagers. For the kids, I have a usb drive full of movies that plays through the idrive. Rear climate controls (4 zone climate control)
Cons: it's big. E63 feels smaller. My GL feels smaller! Exhaust note is subdued. Yes, they pipe in exhaust noise, but it's easy to code out. Not enough traction. DSC goes off a lot, but it does pretty well at recovering. Did I mention it's big? No distronic. Limited tuning options, but this thing doesn't need more power. It needs AWD. Feels a little numb and detached. You look down and you don't realize you are doing 100. Very, very easy to drive fast even when you don't want to.
For me, I wanted something different and the M5 fit the bill. The fact it was cheaper didn't hurt either. But the allure of AWD would make me re-consider the 2014 E63S. hard to go wrong with either.



