BMW M850i G-Power Cabriolet G14 (2020)
BMW M850i G-Power Convertible G14 (2020), G-Power performance upgrade, complete service history, extensive features
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BMW M850i G-Power Cabriolet G14 (2020)
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Kickdown's Take
by Juri PilawaThis M850i Convertible was tuned by G-Power from 8 to 620 PS, is TĂśV-certified, and has been verified through a power test to produce 626.3 PS and 896.1 Nm. With just 56,799 kilometers on the odometer and a complete service history, the vehicle is in excellent condition. The elegant color combination of Dravit Gray Metallic with white leather is a real highlight. Perfect for convertible enthusiasts looking for a distinctive BMW that offers both thrills and everyday practicality.
Kickdown Check
- On-site kick
down assess ment com pleted - 238 pho
tos - Video includ
ing engine run - G-Power per
for mance upgrade to 620 PS - Ver
i fi able mileage of 56,803 km, doc u mented with a com plete ser vice his tory - Last ser
vice in Feb ru ary 2026 and TĂśV valid through May 2028
Facts & Specifications
- Model year 2020
- First reg
is tra tion: Ger many - Engine: 4.4-liter twin-turbo V8 with 530 PS; upgraded to 620 PS (456 kW) via G-Power soft
ware - Trans
mis sion: Auto matic - Exte
rior color: Dravit Gray Metal lic - Inte
rior: White leather - TĂśV valid through 05/2028
- Fea
tures: - BMW M Sport brakes
- Swarovski crys
tal lights - LED head
lights and tail lights - Eight
fold tires (8-tire con fig u ra tion) - And much more
- The fol
low ing mod i fi ca tions were made; G-Power soft ware, TĂśV-cer ti fied: - G-Power Per
for mance Soft ware GP-620 (530 PS → 620 PS) - G-Power V-MAX boost
- G-Power DEEP
TONE rear muf fler - Speedome
ter adjust ment to 330 km/h
Condition
Exterior
- The exte
rior color of the BMW M 850i xDrive is Dravit Gray Metal lic - Vehi
cle in orig i nal paint con di tion with no repaint ing - Body in excel
lent and pris tine con di tion - Acci
dent-free - Eight
fold tires installed
Interior
- The BMW M 850i xDrive is equipped with white leather
- The inte
rior is in excel lent, clean, and well-main tained con di tion - There are no known defects in the inte
rior
Technical Specifications
- Ready to drive imme
di ately and reg is tered - G-Power per
for mance mea sure ment: 626.3 PS and 896.1 Nm - Per
for mance soft ware - Last main
te nance per formed in Feb ru ary 2026 - Passed the TĂśV gen
eral inspec tion and emis sions test on May 6, 2026, with no defects
History
Ownership History
- 2024 to present: 2nd owner
- 2020 to 2024: 1st owner
Service History
- July 16, 2020 – Ini
tial reg is tra tion - Decem
ber 6, 2024 at approx. 55,000 km – G-Power GP-620 per for mance soft ware installed, includ ing V-MAX increase, DEEP TONE rear muf fler, and TÜV indi vid ual approval (7,817.50 EUR gross) - June 4, 2025 at approx. 55,700 km – Power mea
sure ment on ROTRON ICS dynamome ter: 626.3 PS / 896.1 Nm - Feb
ru ary 2026 at approx. 56,000 km – Main te nance per formed - May 6, 2026 at approx. 55,733 km – Passed TÜV gen
eral inspec tion and emis sions test with no defects (DEKRA)
Documents
- Ger
man vehi cle doc u ments - Com
plete ser vice his tory - EC Cer
tifi cate of Con for mity (BMW COC doc u ments) - DEKRA TĂśV report dated May 6, 2026
- G-Power order con
fir ma tion - Per
for mance mea sure ment on ROTRON ICS dynamome ter
Summary
For sale is a BMW M 850i xDrive orig
Vehicle videos
Kickdown check
- Kickdown photographer was on site
- Video of the vehicle available
- Main inspection
- Complete checkbook
- Current service performed
- Low milage



Comments of this past auction
Technik: Der BMW 8er (interne Bezeichnung: G14 – Cabriolet, G15 – Coupé, G16 – Gran Coupé) ist ein Oberklasse-Pkw der 8er-Reihe von BMW, der 2018 als erstes Modell das Coupé (F13) der 6er-Reihe ablöste. 2019 folgten das Cabrio als Nachfolger des F12 und das viertürige Coupé als Nachfolger des F06. 2019 erhielt der M850i xDrive Das Goldene Lenkrad in der Kategorie Das schönste Auto. Für die M8-Modelle lauten die internen Bezeichnungen: F91 – M8 Cabriolet, F92 – M8 Coupé, F93 – M8 Gran Coupé. Im Herbst 2025 nahm BMW den 8er vom Markt. Noch vor dem Markteintritt ging BMW mit dem M8 GTE 2018 in Daytona an den Start. LG Tom