Stock or Tuned M3: We Have Both F80s, and Which to Hire

This is a comparison almost nobody can make honestly, because almost nobody has both cars. We have two F80 M3 Competitions at Parramatta - one entirely standard, one Stage 1 at around 600 horsepower - at $400 and $530 a day. So the only question is which one you should actually take.

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Two Prices, Two Different Cars

The stock F80 is $400 a day and the tuned one $530. The gap is modest on purpose: the tune is not really an upgrade in the way that a bigger engine would be. It is a different balance, and a big premium would push people towards it for the wrong reason.

So this decision is still mostly about which car suits you, which is a much better question than which one you can justify.

Both are 2016 F80 M3 Competitions, both rear-wheel drive, both dual-clutch, both based at Parramatta so you can collect rather than pay delivery. Both sit in our Performance tier; minimum driver age 25 with a full licence, like every M3.

The Stock Car: What BMW Actually Built

331kW, 450 horsepower, 550Nm. Roughly four seconds to 100.

The thing worth understanding about the factory F80 Competition is that BMW's M division spent an enormous amount of engineering effort balancing it. The power, the chassis, the differential, the tyre, the brakes and the electronics were developed together against that specific power figure.

The result is a car that is fast enough to be genuinely exciting and coherent enough that you can lean on it on a road you have never driven. It does what you expect. When it does move around, it does so progressively and it tells you first.

That coherence is the reason it is the better hire for most people, and it is not a consolation prize. A well-balanced 450hp car on a good road is one of the better driving experiences available at any price.

The Tuned Car: What Happens When You Let It Off

Around 440kW, 600 horsepower, roughly 710Nm.

The full explanation of what Stage 1 does is written up separately, but the short version is that the S55 has substantial headroom in its hardware and the factory calibration is conservative. Releasing it via software produces about 150 extra horsepower, concentrated exactly where you drive.

On a dry road with warm tyres, it is a considerably more dramatic car. Third gear is genuinely rapid. The engine feels less like it is delivering a measured amount of performance and more like it is being asked what it can do.

What has not changed is everything else. Same brakes. Same suspension. Same tyres. The car's balance has shifted towards the engine, and the chassis is now working harder relative to what it is being given.

Where the Tuned Car Is Actually Better

Straight-line acceleration, obviously, and overtakes in particular. The mid-range surge makes a third-gear overtake a considerably shorter event.

Open, fast, dry roads where the surface is good and the corners are long. That is where you can use the extra power without asking the chassis to do anything unusual.

And, honestly, the experience of it. If you have driven fast cars before and what you want is the sensation of an engine that feels slightly unhinged, the tuned car provides that and the stock one does not.

Where the Stock Car Is Actually Better

Anywhere tight, technical or damp.

On a narrow road with slow corners, the limiting factor is not power, it is how confidently you can get on the throttle at the exit. The stock car lets you do that earlier and with less thought. The tuned car makes you wait, or makes the traction control work.

In the wet, the difference is stark. 450hp through the rear wheels on a wet Sydney road is already something to respect. 600hp is a different conversation, and it is the one where inexperience shows up fastest.

And on a long drive, the stock car is the more relaxing of the two, because you are not constantly aware of how much is under your right foot.

The Honest Recommendation

If you have not driven a fast rear-wheel-drive car before, take the stock one. This is not us managing risk, it is that the stock car is genuinely the better experience for that driver. You will be able to use more of it, more of the time, with more confidence, and you will come back having driven the car rather than having been driven by it.

If you have driven fast rear-drive cars and know what a throttle does on a damp surface, take the tuned one. It is the more memorable car and you will use it properly.

If it is wet, take the stock one regardless of experience, or if you are over 25 consider the G80 xDrive, which is all-wheel drive and removes the question entirely.

If you cannot decide, take the stock one first. It is the reference point, and the tuned car only means something in relation to it.

Doing the Comparison Properly

The most interesting thing we can offer, and the reason this page exists, is that you can drive both.

Two bookings across a weekend - stock on Saturday, tuned on Sunday, the same roads at the same time of day - is the only way to genuinely understand what 150 horsepower does to a car that is otherwise identical. Almost nobody gets to do that.

Alternatively, two bookings on the same day with two named drivers, swapping halfway. Each car needs its own driver on its own booking, each carries its own bond, and each driver must be 25 or over.

Tell us if that is the plan so we can hold both cars together. Booking them separately and hoping they land on the same day is how it goes wrong.

Practicalities for Either

Both take premium unleaded, and on the tuned car 98 octane is a requirement rather than a preference because the tune assumes it.

The stock car is $400 a day and the tuned one $530, with the taper on longer hires. Both at Parramatta, so collection avoids the delivery fee. Minimum driver age 25 with a full licence, bond held rather than charged, damage excess $5,000.

And for either car, the single most useful piece of advice remains the same: give the tyres ten minutes before asking anything of them. Cold performance tyres are where almost every incident in cars like these begins, and it applies to the stock car nearly as much as the tuned one.

Everything about all four of our M3s is on the M3 hire hub.

The Honest Case Against Tuning At All

We hire a tuned car, so it would be easy to write only the enthusiastic version. Here is the other side, because it is a real argument and some people will find it persuasive.

BMW's M division spent years and a very large budget balancing the F80. Every element - power delivery, differential behaviour, damper calibration, tyre choice, stability control thresholds - was developed as a system against a specific output. A remap changes one variable in that system and leaves the rest.

The result is a car that is faster and slightly less coherent. Not badly so, and not dangerously so, but the F80 Competition in factory form is one of the better-resolved fast saloons ever made, and 150 extra horsepower is not obviously an improvement to something already resolved.

There is also the question of what you actually use. On a public road in New South Wales, with the enforcement that exists here, the honest truth is that you will use a smaller fraction of 600 horsepower than you will of 450. The extra power lives in a part of the performance envelope that is largely theoretical on the way to the Blue Mountains.

The counter-argument, and the reason we keep the car, is that the mid-range surge is real and usable at legal speeds in a way peak power is not. A third-gear overtake is genuinely different. That is not theoretical.

Both positions are defensible. The reason we charge the same for both cars is that we genuinely do not think one is better than the other.

What to Ask Yourself Before Choosing

Three questions that settle it faster than reading more comparisons.

Have you driven a rear-wheel-drive car with more than 400 horsepower before? If no, take the stock one. Not as a precaution - because you will get more out of it and enjoy it more.

What is the forecast? If it is wet, take the stock one, or if you are over 25 consider the all-wheel-drive G80 instead.

Are you chasing the car or the sensation? If what you want is to understand what an F80 M3 is, the stock car is the F80 M3 and the tuned one is a modified version of it. If what you want is the sensation of something slightly unhinged, that is the tuned car and the stock one will feel measured by comparison.

There is no wrong answer here, and at $400 and $530 the price gap is small enough that it should not decide it.