Extremely, new MH4 900 does what it says on tin

Going more and more mad with output potentialities is clearly a tuner’s job. The final time we encountered a BMW M4 that had been breathed on by Manhart, it was a CSL with 150hp added to the full. To us, 700hp gave the impression of lots sufficient – and it was sufficiently ‘on the market’ for the agency to christen it the GTR; not the type of letters you apply to something with out it being on the sting of the conceptual envelope. Plus it was a one-off, and that at all times means the gloves have come off. 

The brand new MH4 900 (which follows the similarly bonkers MH3 Touring) it appears, will not be a one-off. And but Manhart has seen match – presumably with ample buyer demand to justify it – to coax an astonishing 922hp and 878lb ft of torque from the S58 lump. For context, ought to you actually need it, that’s very practically 100hp greater than Ferrari equips the 12Cilindri with utilizing a 6.5-litre V12. Manhart doesn’t deal with us to any efficiency information, but it appears honest to imagine that the MH4 is absurdly brisk in nearly any given state of affairs – and probably a little bit of a handful, too. 

Even taking the endlessly tuneable nature of BMW’s 3.0-litre straight-six into consideration, you received’t be shocked to listen to that it requires some important upgrades to get the usual unit past 900hp. Manhart says the centrepiece of the whole effort is the (presumably a lot bigger) TTH turbocharger and uprated intercooler, although it’s accompanied by solid pistons and connecting rods, a carbon consumption and (inevitably) a remapped ECU. The transmission has been enhanced to what Manhart calls ‘stage 2’ – a reputation that denotes its newfound capacity to deal with as much as 1,300nm of twist. 

Naturally, you get a brand new exhaust, too – particularly a valve-controlled, chrome steel one with quad 110-millimetre tailpipes. There’s additionally the selection of both sport downpipes or an OPF-deleting various. Elsewhere, the MH4 900 provides height-adjustable H&R coilovers and a few further unspecified chassis modifications, not least to get these 20-/21-inch black Raffa rims completely positioned within the wheel arches. Within the case of Manhart’s demo automobile, these are meant to offset the paint job (to not point out the champagne-coloured decals or the GTR-inspired carbon fibre bodykit), however different colors can be found. 

Inside, the tuner retains it admirably easy, including its Clubsport roll bar and ground mats to the acquainted M4 cabin, presumably to maintain our consideration centered on what’s beneath the carbon fibre cowl below the bonnet. ‘For a very long time, efficiency figures of round 1,000hp have been unimaginable in road-legal vehicles. In the present day, they’re actuality, however nonetheless reserved for high-end supercars value hundreds of thousands, or a minimum of priced within the higher six-figure vary,’ says Manhart. The MH4 900 is alleged to be all about coming into ‘this extremely unique circle’. 

Whether or not or not you’d really wish to do that’s, after all, all to do with private desire. Private expertise in our case suggests the present M4 (in any spec) is lots fast sufficient to fulfill most individuals’s aspirations on a public street – and even away from them. However maybe we’re responsible of being too slim in our outlook; we thought the GTR was most likely a bit an excessive amount of. Now look.