Different power figures for the same model and year - why?

[Slartibartfast]

I have a 2015 SL400. Some sources quote the power as 333 horsepower while others quote 328 horsepower. Why the difference? I did a quick google search:

"AI Overview:
The SL400 has two different horsepower figures: 328bhp and 333bhp. The 328bhp version is the older model, while the 333bhp version is the one with the later engine upgrade. The key difference lies in the specific year of production and potential engine upgrades."

The above statement is incorrect. A deeper google search informs that the "333bhp" is in fact 333PS which is equivalent to 328BHP:

"PS was created to be the metric equivalent of horsepower. The letters stand for “pferdestärke,” which actually translates to “horsepower” in German. One PS is equal to about 0.9863 of one horsepower"

Maybe everyone on this forum already knew this, but I didn't until just now.
unconfused.com

 

[SpikyMikey]

I was also confused.com about my 3 Series until I twigged the PS vs BHP thing (output variously quoted as 252 or 248).
Fear not. It's not just you

 

[Petrol Pete]

I am one of those who has know for decades what PS means , but only because when I was a younger man an Austrian friend of mine used to get a German language motorbike magazine delivered to him and he would read it to me while I looked at the glossy pictures of motorbikes I thought I might never be able to afford.

The other one is for years many countries use KW to explain engine power output.

I personally prefer good old (and it is old) Horse Power.

 

[Bellow]

From another forum where a guy ''Did a quick Google search regarding valve to piston clearance and my chosen camshaft, a "Truck Norris" cam''
Anyone feeling brave enough to query lateral weight transfer during cornering?

 

[Larkone]

Making intelligence artificial was a brilliant idea

 

[UKGTC]

I am one of those who has know for decades what PS means , but only because when I was a younger man an Austrian friend of mine used to get a German language motorbike magazine delivered to him and he would read it to me while I looked at the glossy pictures of motorbikes I thought I might never be able to afford.

The other one is for years many countries use KW to explain engine power output.

I personally prefer good old (and it is old) Horse Power.

Annoyingly manufacturers often like to quote PS because it's slightly higher than HP and most buyers don't realise they are different.

 

[Bellow]

Annoyingly manufacturers often like to quote PS because it's slightly higher than HP and most buyers don't realise they are different.

Just like the lame quote torque in N.m rather than lb.ft because the former is a bigger number. They shun kW for hp for the same reason. Two different units from two different systems applied to one thing. Do they quote their weight in stones and kg? 'I'm 15 stone and 3kg. My head is even fatter'.

 

[Slartibartfast]

Just like the lame quote torque in N.m rather than lb.ft because the former is a bigger number. They shun kW for hp for the same reason. Two different units from two different systems applied to one thing. Do they quote their weight in stones and kg? 'I'm 15 stone and 3kg. My head is even fatter'.

 

[Slartibartfast]

Annoyingly manufacturers often like to quote PS because it's slightly higher than HP and most buyers don't realise they are different.

Sort of like "horses for courses" I suppose

 

[markjay]

At least they don't advertise the 0-60 figure in furlongs per fortnight.....

 

[SamW]

Is that why some runners or cyclists use km instead of miles?!

 

[W1ghty]

You lot have gone “full dweeb “ on this thread

 

[Petrol Pete]

Funny enough motorway work in the UK done using Kilometres as the measure despite the whole road system being in miles.

So if a barrier/road needs repair it is quoted as being X kilometres from a particular road marker.

And UK OS maps used by all and sundry here are scaled in X meters per grid.

 

[Bellow]

And bananas are still sold by the kg. I'd love to see petrol and diesel sold in gallons though. It'd be hilarious watching meatheads overfilling and not having enough LSD to pay for it. Maybe they have a few guineas stashed for such an eventuality.

 

[Bobby Dazzler]

Annoyingly manufacturers often like to quote PS because it's slightly higher than HP and most buyers don't realise they are different.

It’s not to mislead, it’s because PS and Nm are the metric units of measure used in Europe.

If it was to mislead, then why quote acceleration figure as 0-62 mph as that slower than it would be if quoting 0-60 mph?

 

[Mactech]

I was quite impressed that AI got 'Lateral migration of the roll centre' quite well. Most people think it's the bread shop that moved sideways....
Try it!

 

[ToeKnee]

Just like the lame quote torque in N.m rather than lb.ft because the former is a bigger number. They shun kW for hp for the same reason. Two different units from two different systems applied to one thing. Do they quote their weight in stones and kg? 'I'm 15 stone and 3kg. My head is even fatter'.

It always amuses me how newspapers quote the outside temperature in summer in fahrenheit and in the winter in celcius. "It's scorching and in the late 80's" or "it's freezing and minus 2"

 

[Bellow]

It always amuses me how newspapers quote the outside temperature in summer in fahrenheit and in the winter in celcius. "It's scorching and in the late 80's" or "it's freezing and minus 2"

Don't be forgetting those other journalistic measurements - football pitches and olympic swimming pools. Makes perfect sense though given we all have one of each for easy reference.

 

[ALFAitalia]

And an area of (insert choice) the size of Wales....

 

[Slartibartfast]

When UK went decimalised, a "2x4" wooden Batten became 5x10cm, but still cost 10 bob a foot