Short answer: The VMAX de-restriction for the Fiat Topolino increases the standard speed limit from 45 km/h to up to 80 km/h and boosts power from 8 to 14 HP (39 → 44 Nm). Optimized via bench — without opening the control unit, the waterproof housing remains sealed. From €333.33, plug-and-play from stock.
→ Order Topolino optimization now · All info: Topolino, Rocks-e & Ami
The Fiat Topolino is factory-limited to 45 km/h — not for technical reasons, but because it is registered as a light vehicle (L6e). The electric motor and control unit can do much more. With our software optimization, you get exactly that.
What Stage 1 specifically offers
| Characteristic | Standard | Stage 1 | Plus |
|---|---|---|---|
| Power | 8 HP | 14 HP | +6 HP (+75 %) |
| Torque | 39 Nm | 44 Nm | +5 Nm |
| VMAX | 45 km/h | up to 80 km/h | +35 km/h |
You'll particularly notice the increased torque on inclines: The standard model noticeably slows down on hills — Stage 1 pulls through smoothly. In city traffic, you drive confidently without holding up traffic behind you.
Without opening — the crucial difference
The VCU3000 control unit is located behind the bumper and regularly gets wet. Other providers drill a hole in the housing and then seal it with plastic — that's exactly where water gets in, and that's exactly what destroys the water-sensitive ECU. We are the only provider worldwide that can read and write the VCU3000 via bench without opening the housing. The waterproof housing remains closed, and the IP protection is maintained.
Variants & Prices
| Variant | VMAX | Send in your own ECU | Plug-and-play |
|---|---|---|---|
| VMAX only (no power increase) | up to 53 km/h | €333.33 | €888.88 |
| Stage 1 + VMAX | up to 80 km/h | €699.99 | €999.99 |
| Stage 1 + VMAX capped | 50 / 55 / 60 / 65 km/h | €699.99 | €999.99 |
Two ways to reach your goal
Send in your own ECU: You send in your control unit — we process it the same day via bench and send it back. Install, done.
Plug-and-play: Pre-programmed control unit from stock — old out, new in, drive off. No need to send anything in. This offer is exclusively available from us.
Vehicle from 2026? No problem.
All other providers fail with the new 2026 data version. Our plug-and-play control unit still works — open VMAX and full power in the 2026 Topolino. We are the only ones worldwide.
With the Topolino on the Nordschleife
We drove a tuned Topolino on the Nürburgring Nordschleife — nobody has done that before us. Honestly: With a cold battery (below approx. 15 °C), the full VMAX is not yet available — that's pure physics, not a software limitation. Drive it warm briefly, then you get the full 80 km/h.
Does this also apply to Opel Rocks-e and Citroën Ami?
Yes — all three vehicles use the same VCU3000 control unit, and the optimization is identical. All three vehicles at a glance →
Range & Reliability
With normal driving, consumption remains practically the same. Anyone who drives at full throttle permanently needs more power — like with any EV. We stay within safe limits for the motor, controller, and battery — no extreme values, reversible, factory-quality results.
Order now
→ Fiat Topolino: Select variant & order
→ Overview page: Topolino, Rocks-e & Ami
Phone: +49 (0) 8031 409 2134 · WhatsApp
Note: The software modification is intended for motorsport and export purposes. The customer is responsible for the area of use.
