A few honest things before you put money down:
The Vado isn't an eMTB — it's Specialized's commuter/fitness range (rigid or short-travel fork, slick-ish tyres, rack/mudguard mounts). If you're moving from a Peddle Pro and your riding is road, towpath and light gravel, that's fine and the Vado does that job very well. If you wanted to ride trails, you'd want a Levo, Levo SL or Kenevo SL instead — say the word and I'll lay those out.
On the "Vado 3 4.0 2027" specifically — I can't confirm that bike. Specialized hasn't announced a 2027 Vado line yet (the current range is the 2025 model year, with 2026 trickling in), and "Vado 3 4.0" mixes two naming conventions: there's the Vado 4.0 (full-power, Specialized 2.2 motor, 710Wh) and the Vado SL range (lightweight, SL 1.2 motor, 320Wh, with a 160Wh range extender option). There's no "Vado 3" sub-model I can verify, and I'd rather tell you that than invent a spec sheet.
Two possibilities:
• You mean the Vado 4.0 — current RRP around £3,750, Specialized 2.2 motor (90Nm), 710Wh internal battery, Future Shock 2.0 front suspension, 50mm travel-equivalent, suspension seatpost, rack and mudguards included. Class-leading commuter, genuinely.
• You mean the Vado SL 4.0 (or SL 5.0 EQ) — much lighter (~15–17kg), SL 1.2 motor (50Nm, 320Wh), feels far more like a normal bike. Better if your route is hillier-but-shorter or you'll be lifting it onto trains/into a flat.
My suggestion: hold off ordering a "2027" until Specialized actually launch it — dealers sometimes pre-list speculative model years. Ring a Specialized Concept Store, ask what's landing and when, and whether current 2025 stock is being discounted to clear (it usually is once the new year is announced). You may save £500–800 buying a run-out 2025 over a brand-new 2027.
If you can tell me which Vado variant you actually meant (full-power 4.0, or SL 4.0/5.0), and roughly what your commute/ride looks like, I'll give you a proper recommendation with numbers.