I have a 520 which I bought because I could not find a 3 series I liked
in the time frame allowed.
Now when I sit in a friends 325, I am annoyed by how small it is.
I have grown to love the extra room in the 5.
Floyd is mostly correct. (In the U.S.), the 3 and 5 series share the same
3.0 liter 6 cylinder engine in both 215 and 255 hp versions. The 5 series
is also available with a 5 liter V8. So if you are comparing a 325i with a
525i, the 5 is larger ( a little over a foot longer) and weighs about 75
pounds more - but the engine and drivetrain are exactly the same.
Your question was flawed.
The two cars (3 series and 5 series) are available with the exact same
engines. You did not specify which engines you were talking about.
Don't be such a putz. You can go back to wherever you came from now.
You need to learn how to post.
I am a flagrant top poster, but when I follow another person in a
discussion, I always observe the way they posted.
I've seen three of your posts, and one was the original that started this
thread. In the other two, the reply was posted below your questioin, and YOU
posted a follow-on at the top.
Now, you are arguing the answer to a question you asked. If you are going to
argue the answer, do not ask the question. Given the way BMW names their
cars, a 325 and a 525 have the same motor. The 5 only has a bigger motor if
the last two digits are higher than 25. For example, the 535 is larger than
the 325 of the same vintage because the last two digits are higher. The 530
has the same motor as the 330.
Nobody had a go at you. You asked, they answered, you argued, they replied
to your argument. Your original question was flawwed at best, and yoru
premise was flat out wrong.
In a BMW (for the most part) the first digit (3, 5, 7) refer to the body or
chassis, the last two digits are the engine size in liters. If the last two
are 25, then the motor is 2.5 liters, 35 is 3.5 liters. After the '96 model
year they had to distinguish from the OBD I (1) and OBD II (2) motors, and
the 323 and 328 were born. These are essentially the 2.5 liter motor, and
one is detuned a bit. So, if you were to compare a '95 325i against a '96
528i, you have the same motor, but the 328 is OBD II compliant. Its
displacement is the same as the 325i.
You still need to comply with the posting ettiquette, observe how the
discussion is going and follow along. I'm not going to rant about top
posting because I do that alot, but I typically only do it when I am the
first to reply to a new post, or when others are already top posting. It
REALLY sucks to have one person (you) top post when the others are using the
proper format. Get with the program, or go away.
Yup, it's true. The E36's M50 motor is badged as an n25 and n28, but its
displacement is always 2.5L. It's also badged as a 323. The 323 and 328
(also 528) are OBD II motors, and are different essentially in the torque
and horsepower, while the displacement is the same.
I'm not sure about your 97 Z3, I think it also gets the M50 -- which means
it is 2.5L. I could be wrong on that point though.
Better re-check your "facts" Jeff. Up until the end of the '95 MY the
only six available (in the US) was the 325, which was an M50 engine at
In MY 1996 they changed to the M52 engine and it was a 2.8 liters. The
323 model was added in 1998 and it had a 2.5 liter engine. The idea was
to highlight the performance advantage of the 2.8L over the 2.5L (323i)
Later, in MY 2001, when the 3.0l engine was released they went back to
labeling the 2.5l equipped cars as 325's. But that was the E46 by then.
So the only E36 model which was "mislabeled" as to engine displacement
was the 323.
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