diff --git a/README.md b/README.md
index b9875fb..d363160 100644
--- a/README.md
+++ b/README.md
@@ -3,12 +3,19 @@
 A single-file map console that **merges live vehicle positions and historical
 trips** into one view for the Fireside Communications / Tracksolid fleet.
 
-- Land on the **live fleet** (cost-centre-coloured pins, heading arrows, hover
-  popups with reverse-geocoded address).
-- Pick a vehicle (click its dot → **Show trips**, or the plate dropdown) or apply
-  **cost centre + time period** → the map switches to **seq-coloured trip routes**
-  with start/end markers and a click-to-animate replay.
-- The **● Live** pill returns to the live snapshot.
+- Land on the **live fleet** — cost-centre-coloured pins with a heading arrow, the
+  plate tail below, and a hover popup (status, driver, reverse-geocoded address,
+  heading, odometer, last fix, source). Markers **scale with the zoom level**.
+- **Filters** (bottom-right card) apply to the live map *instantly*:
+  - **Number plate** — multi-select, sorted A→Z; picking a vehicle auto-fills its
+    cost centre + city.
+  - **Cost centre** and **Assigned city** — narrow the live fleet (and the KPI bar
+    recomputes to match).
+  - **Time** (Today / 1 week / 1 month / Custom) — applies to **trips**, not live.
+- Drill into history: click a vehicle's dot → **Show trips**, or set
+  plate / cost centre / city + period and hit **Show trips** for a fleet-wide pull.
+  The map switches to **seq-coloured trip routes** with start/end markers and a
+  click-to-animate replay; the **● Live** pill returns to the live snapshot.
 
 Live: <https://fleetnow.rahamafresh.com>