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Racing Dynamics is also working on it, some info on unreleased options:
Their top of the range model will be called R50S and is based on the new 550i that gets a power boost from 407 hp to an impressive 620 hp from the twin-turbo V8. Racing Dynamics will also add a new new rear-locking differential, sport suspension and high performance braking system.
In the more entry level options:
2026344100 EMS F1x [N63 B44] STEP 1A +88HP NO V-MAX - 550i/xDrive
No pricing on any of this yet.
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