What was the previous generation Z4 missing? Of course, a decent engine! This Manhart tuned version boasts the V10 from the M5 saloon. It’s the same treatment as we saw on the M3 TV10 earlier on in the year, however, putting a V10 in a small roadster should be much more exciting.
The new car features 550bhp as well as an ECU re-tune, deletion of the factory v-max restrictors and a new catalitic converter. As well as gaining it’s engine, the Z4 had also gained it’s 6 speed manual transmission, clutch and differential. An AC Schnitzer quad exhaust kit finishes the conversions off nicely whilst adding an epic soundtrack to the whole package.
New coilovers allow the car to deal with the power. Naturally, new tires and wheels were called for. Black BBS Challenge wheels hide the new rubber, suitably upgraded to include a new gripier tire compound.
It takes 3.9 seconds to reach 100kph (62mph) and weighs in at just 1450kg!
HEART TRANSPLANT – 550 HP in Z4
The M version of the BMW Z4 is famously known by nature for being anything but underpowered, since the chassis of the sports convertible already has a heck of a lot of work with the 343 HP and the forward thrust in the lower gears could last forever.
As is generally known however, the sport oriented motorist can never have enough power at his command. Sufficient cause for Günther Manhart, who by now has over 25 years experience in rebuilding BMW engines – a first for Europe – to transplant a brand new, much stronger heart into the Z4. The transplantation of the ten cylinder engine from the current M5 generation into the narrow engine bay of the roadster was anything but a walk in the park and it earned the Manhart Racing engineers quite a few grey hairs. Nevertheless: everything fitted in the end and now the fire of a 5.0 litre V10 engine with an impressive output of 550 HP blazes above the front axle of the Z4. A catalytic converter, a modified DME electronic control unit and the removal of the factory-set V-Max restriction up to 250 km/h are part of the rebuild. Consistent to the M5 V10 engine Manhart Racing has treated the Z4 to an original M5 E60 6 gear manual transmission which includes a Fichtel & Sachs clutch and a M5 E60 differential. An AC Schnitzer stainless steel exhaust system with four muffler tips which was fitted with HJS racing catalytic converters caters for a perfect V10 sound at the rear.
The Manhart Z4 M V10 goes like hell and thanks to the perfectly tuned Bilstein B16 PSS10 coilovers, the virtually unrestrained power of 550 HP can be brought under control to the tarmac. Black BBS Challenge wheels rotate in the wheel arches of the Manhart Z4 M V10 with 8.5Jx19 ET35 235/35ZR19 front tyres and 10Jx19 ET20 285/30ZR19 back tyres.
Conclusion: 550 HP ten cylinders, an acceleration from 0 to 100 km/h in 3.9 seconds, kerb weight 1450kg, 2.6kg per HP… who could guess that these impressive figures belong to a Z4? Hardly anyone, however Manhart Racing turns dreams into reality and does this with 25 years experience.