Skip advert
Advertisement

This Dähler BMW M340i xDrive is an M3 Touring alternative 

Swiss tuner Dähler has turned this 3-series Touring up to M3-beating power levels 

Whether you have a need for one or not, the fast estate will always be an attractive proposition. Until now, Audi and Mercedes-AMG have generally offered plenty of options but the M3 badge is one still yet to be seen on the more practical boot of an estate. Swiss tuner Dähler has brought the reality of one a step closer…

Advertisement - Article continues below

Based in Belp, Switzerland, the tuner primarily deals with BMW products, its latest project being the M340i xDrive Touring. Fitted with its ‘Competition line’ additions, the B58-equipped estate is pumped to numbers that beat the latest M3, while subtle aesthetic tweaks boost its aesthetic flare. 

> McLaren P1 GTR-18 pays homage to the final F1 GTR Longtail 

A unit now used in the A80 Supra and every 40i-badged BMW product currently on sale, the 3.0-litre B58 turbocharged straight-six is renowned for its tunability, thanks in part to it’s closed-deck construction and twin-scroll turbocharger. As standard, the M340i produces a peak power of 369bhp and 369lb ft of torque, but when fitted with a relatively simple ECU tune, Dähler is able to extract even more. 

‘Level 1’ provides an extra 67bhp and 96lb ft of torque for an output of 436bhp and 465lb ft of torque. The ‘Level 2’ tune lifts this to an F80 M3-beating 469bhp and 502lb ft of torque, 100bhp and 133lb ft over the factory figures. 

Performance numbers haven’t been released, however the brand has confirmed that the top speed limiter is removed in every tuned car, likely bringing Vmax to somewhere around 180mph. G-Power’s similarly-powered M340i xDrive covers the 0-62mph sprint in a quoted 3.8sec.

At an additional cost, drivers can have Dähler’s own stainless steel exhaust system fitted, boasting quad exits to let everyone know this is no standard 3-series. Also available are mechanically adjustable coilovers, but units including BMW’s adaptive Dynamic Damping Control will arrive later. Lightweight 20-inch alloy wheels are also available, likewise a more aggressive front splitter.

These upgrades are also available on the 3-series saloon, but without a factory BMW M3 estate on the cards, it makes a fettled 3-series estate with M3-matching comparable power that much more interesting. 

Skip advert
Advertisement

Recommended

The incoming BMW 3-series M350 will come with a straight-six and M3 power
2027 BMW 3 series testing
News

The incoming BMW 3-series M350 will come with a straight-six and M3 power

We all know the BMW 3-series is going electric with the new i3, but the combustion-powered model certainly hasn’t been forgotten… 
8 Sep 2026
BMW i3 Touring spied – will this be the most desirable daily EV?
BMW i3 Touring
News

BMW i3 Touring spied – will this be the most desirable daily EV?

BMW will expand its i3 offering in all the usual ways it does with the 3-series. The upcoming Touring has been spied testing with a thin disguise
19 Aug 2026
BMW's new i3 revealed - the electric 3-series to take on Tesla's Model 3
BMW i3 – front
News

BMW's new i3 revealed - the electric 3-series to take on Tesla's Model 3

BMW’s second ‘Neue Klasse’ model is a fully electric take on the iconic 3-series, with a petrol-engined counterpart on the horizon too
18 Mar 2026
BMW USA leaks M2 xDrive and M350 top-spec 3-series
BMW M2
News

BMW USA leaks M2 xDrive and M350 top-spec 3-series

A slip-up by BMW USA’s parts site has confirmed the imminent arrival of a number of new models
27 Feb 2026
Skip advert
Advertisement

Most Popular

Lotus Esprit (1976-1987) review – from James Bond's icon to the Esprit Turbo
Lotus Esprit Turbo
In-depth reviews

Lotus Esprit (1976-1987) review – from James Bond's icon to the Esprit Turbo

The delicate but delicious Esprit was a supercar like no other. Here's everything you need to know and our drive of the Esprit Turbo
7 Sep 2026
BMW i8 (2014-2020) review – futuristic hybrid sports car now looks a bargain
BMW i8 review
In-depth reviews

BMW i8 (2014-2020) review – futuristic hybrid sports car now looks a bargain

The BMW i8 was a very different sort of 911 rival, not least because it used a hybrid system with a Mini engine mounted in the middle and a carbon tub
9 Sep 2026
Volkswagen Group’s survival plan and how it got in such a mess
Volkswagen ID.3
Opinion

Volkswagen Group’s survival plan and how it got in such a mess

What was 2019’s largest carmaker is now cutting 100,000 jobs and 50 per cent of its models. How did it get here?
6 Sep 2026