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BMW 4 Series Convertible vs Lexus NX - Differences and prices compared

Compare performance (530 HP vs 309 HP), boot space and price (52100 £ vs 46000 £ ) at a glance. Find out which car is the better choice for you – BMW 4 Series Convertible or Lexus NX?

BMW 4 Series Convertible

Lexus NX

4.9 (5 Reviews)
rate

Here’s where it gets real: The technical differences in detail

4 Series Convertible

Costs and Efficiency:

Price and efficiency are often the first things buyers look at. Here it becomes clear which model has the long-term edge – whether at the pump, the plug, or in purchase price.

Lexus NX has a to a small extent advantage in terms of price – it starts at 46000 £ , while the BMW 4 Series Convertible costs 52100 £ . That’s a price difference of around 6086 £.

Fuel consumption also shows a difference: Lexus NX manages with 2.90 L and is therefore clearly more efficient than the BMW 4 Series Convertible with 5.20 L. The difference is about 2.30 L per 100 km.

NX

Engine and Performance:

Under the bonnet, it becomes clear which model is tuned for sportiness and which one takes the lead when you hit the accelerator.

When it comes to engine power, the BMW 4 Series Convertible has a significantly edge – offering 530 HP compared to 309 HP. That’s roughly 221 HP more horsepower.

In acceleration from 0 to 100 km/h, the BMW 4 Series Convertible is convincingly quicker – completing the sprint in 3.70 s, while the Lexus NX takes 6.30 s. That’s about 2.60 s faster.

In terms of top speed, the BMW 4 Series Convertible performs to a small extent better – reaching 250 km/h, while the Lexus NX tops out at 200 km/h. The difference is around 50 km/h.

4 Series Convertible

Space and Everyday Use:

Whether family car or daily driver – which one offers more room, flexibility and comfort?

Seats: Lexus NX offers a bit more seating capacity – 5 vs 4.

In curb weight, BMW 4 Series Convertible is slight lighter – 1765 kg compared to 1805 kg. The difference is around 40 kg.

In terms of boot space, the Lexus NX offers evident more room – 545 L compared to 385 L. That’s a difference of about 160 L.

When it comes to payload, Lexus NX to a small extent takes the win – 515 kg compared to 420 kg. That’s a difference of about 95 kg.

Who wins the race in the data check?

The Lexus NX shows small but noticeable advantages in the objective data comparison.
This result only shows which model scores more points on paper – not which of the two cars feels right for you.

BMW 4 Series Convertible
Lexus NX

Costs and Consumption

View detailed analysis

Engine and Performance

View detailed analysis

Dimensions and Body

View detailed analysis
from about £46,000
NX

Lexus NX

  • Engine Type : Full Hybrid, Plugin Hybrid
  • Transmission : Automatic
  • Drive Type : Front-Wheel Drive, All-Wheel Drive
  • Power HP : 244 - 309 HP
  • Consumption L/100km : 2.9 - 5.9 L
  • Electric Range : 72 km

BMW 4 Series Convertible

The BMW 4 Series Convertible blends coupe-like elegance with open-top drama, its sleek profile and distinctive grille demanding attention whether the roof’s up or down. Behind the wheel it serves up taut handling and a refined ride, making it a rewarding choice for drivers who want sporty character without sacrificing everyday comfort — and yes, it looks spectacular when you drop the top.

details

Lexus NX

4.9 (5 Reviews)
rate

The Lexus NX wraps striking, chiseled styling around a cabin that feels more crafted living room than utility vehicle, with soft materials and user-friendly tech that give it genuine premium cachet. On the road it's composed and quietly confident, trading sporty pretensions for a refined, easygoing personality that will suit buyers who want luxury without fuss — with a little Lexus flair to make daily commutes feel special.

details
BMW 4 Series Convertible
Lexus NX

Costs and Consumption

Price
52100 - 96600 £
Price
46000 - 64300 £
Consumption L/100km
5.2 - 10.2 L
Consumption L/100km
2.9 - 5.9 L
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
72 km
Battery Capacity
-
Battery Capacity
-
co2
136 - 231 g/km
co2
65 - 134 g/km
Fuel tank capacity
59 L
Fuel tank capacity
55 L

Dimensions and Body

Body Type
Convertible
Body Type
SUV
Seats
4
Seats
5
Doors
2
Doors
5
Curb weight
1765 - 2055 kg
Curb weight
1805 - 2065 kg
Trunk capacity
385 L
Trunk capacity
545 L
Length
4768 - 4770 mm
Length
4660 mm
Width
1852 - 1887 mm
Width
1865 mm
Height
1384 - 1394 mm
Height
1670 mm
Max trunk capacity
-
Max trunk capacity
1436 L
Payload
345 - 420 kg
Payload
475 - 515 kg

Engine and Performance

Engine Type
Diesel MHEV, Petrol, Petrol MHEV
Engine Type
Full Hybrid, Plugin Hybrid
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
CVT
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
Front-Wheel Drive, All-Wheel Drive
Power HP
184 - 530 HP
Power HP
244 - 309 HP
Acceleration 0-100km/h
3.7 - 8.2 s
Acceleration 0-100km/h
6.3 - 8.7 s
Max Speed
236 - 250 km/h
Max Speed
200 km/h
Torque
300 - 700 Nm
Torque
-
Number of Cylinders
4 - 6
Number of Cylinders
4
Power kW
135 - 390 kW
Power kW
179 - 227 kW
Engine capacity
1995 - 2998 cm3
Engine capacity
2487 cm3

General

Model Year
2024 - 2025
Model Year
2025
CO2 Efficiency Class
E, F, G
CO2 Efficiency Class
D, B
Brand
BMW
Brand
Lexus
What drive types are available for the BMW 4 Series Convertible?

The BMW 4 Series Convertible is offered with Rear-Wheel Drive or All-Wheel Drive.

The prices shown are estimates based on German list prices, adjusted for local VAT. Local registration taxes (e.g. NoVA, BPM or CO2 malus) are not included. This information is not legally binding.