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Lexus RZ vs smart #5 comparison

Compare performance (408 HP vs 646 HP), boot space and price (48,900 £ vs 39,300 £ ) at a glance. Find out which car is the better choice for you – Lexus RZ or smart #5?

Lexus RZ vs smart #5: Key differences

Lexus RZ

4.8 (2 Reviews)
rate
  • clearly more efficient
  • a bit lighter
details

smart #5

4.9 (5 Reviews)
rate
  • markedly cheaper
  • visibly more power
  • barely more electric range
  • slightly quicker 0–100 km/h
details

All details on performance, efficiency, range and trunk space can be found in the technical comparison below – including user reviews for both models.

By Achim Sedelmaier

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

RZ

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.

smart #5 is markedly cheaper – starting at 39,300 £ , while the Lexus RZ costs 48,900 £ . That’s a price difference of around 9,600 £.

In terms of energy consumption, the Lexus RZ is clearly more efficient: consuming 14.7 kWh/100km compared to 18.4 kWh/100km for the smart #5. That’s a difference of about 3.7 kWh/100km.

As for electric range, the smart #5 offers barely more range – reaching up to 590 km, about 31 km more than the Lexus RZ.

#5

Engine and Performance:

Power, torque and acceleration say a lot about how a car feels on the road. This is where you see which model delivers more driving dynamics.

When it comes to engine power, the smart #5 offers visibly more power – delivering 646 HP compared to 408 HP. That’s roughly 238 HP more horsepower.

When accelerating from 0 to 100 km/h, the smart #5 is slightly quicker – completing the sprint in 3.8 s, while the Lexus RZ takes 4.4 s. That’s about 0.6 s quicker.

There’s also a difference in torque: the smart #5 delivers clearly more torque with 710 Nm compared to 538 Nm. That’s about 172 Nm more.

RZ

Space and Everyday Use:

Cabin size, boot volume and payload all play a role in everyday practicality. Here, comfort and flexibility make the difference.

Both vehicles offer seating for 5 people.

In terms of curb weight, Lexus RZ is a bit lighter – 1,995 kg compared to 2,200 kg. The difference is around 205 kg.

When it comes to payload, the Lexus RZ carries barely more – 540 kg compared to 502 kg. That’s a difference of about 38 kg.

Who wins the race in the data check?

The smart #5 is far ahead overall 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.

from £39,300
#5

smart #5

  • Engine Type : Electric
  • Transmission : Automatic
  • Drive Type : Rear-Wheel Drive, All-Wheel Drive
  • Power HP : 340 - 646 HP
  • Consumption kWh/100km : 18.4 - 19.9 kWh/100km
  • Electric Range : 465 - 590 km
Lexus RZ
smart #5

Costs and Consumption

View detailed analysis

Engine and Performance

View detailed analysis

Dimensions and Body

View detailed analysis

Lexus RZ

The Lexus RZ brings Lexus' trademark quiet luxury to the electric SUV world, wrapping poised handling and a plush, well-crafted cabin in a calm, composed package. It won't shout about raw figures — instead it trades headline numbers for smooth power delivery, fuss-free tech and an effortless refinement that will suit buyers who want electric convenience without losing the luxury experience.

details

smart #5

The Smart #5 continues to build on the brand's legacy of compact and efficient urban vehicles, now infused with a more modern and stylish design. Its sleek appearance is complemented by a spacious interior, offering comfort without compromising its compact nature. This model is ideal for city dwellers seeking a blend of innovation, practicality, and style in their daily drives.

details
Lexus RZ
smart #5

Costs and Consumption

Price
48,900 - 67,500 £
Price
39,300 - 52,200 £
Consumption L/100km
-
Consumption L/100km
-
Consumption kWh/100km
14.7 - 18.1 kWh/100km
Consumption kWh/100km
18.4 - 19.9 kWh/100km
Electric Range
457 - 559 km
Electric Range
465 - 590 km
Battery Capacity
-
Battery Capacity
74.4 - 94 kWh
co2
0 g/km
co2
0 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body

Body Type
SUV
Body Type
SUV
Seats
5
Seats
5
Doors
-
Doors
5
Curb weight
1,995 - 2,135 kg
Curb weight
2,200 - 2,378 kg
Trunk capacity
-
Trunk capacity
630 L
Length
-
Length
4,695 mm
Width
1,895 mm
Width
1,920 mm
Height
-
Height
1,705 mm
Max trunk capacity
-
Max trunk capacity
1,530 L
Payload
505 - 540 kg
Payload
475 - 502 kg

Engine and Performance

Engine Type
Electric
Engine Type
Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox
Transmission Detail
Reduction Gearbox
Drive Type
Front-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
227 - 408 HP
Power HP
340 - 646 HP
Acceleration 0-100km/h
4.4 - 7.5 s
Acceleration 0-100km/h
3.8 - 6.9 s
Max Speed
-
Max Speed
200 - 210 km/h
Torque
269 - 538 Nm
Torque
373 - 710 Nm
Number of Cylinders
-
Number of Cylinders
-
Power kW
167 - 300 kW
Power kW
250 - 475 kW
Engine capacity
-
Engine capacity
-

General

Model Year
2025
Model Year
2025
CO2 Efficiency Class
A
CO2 Efficiency Class
A
Brand
Lexus
Brand
smart
DriveDuel uses data analysis and artificial intelligence to evaluate vehicle data and create content. Content is regularly reviewed and improved. The displayed prices are estimates based on German list prices, adjusted to the respective country’s VAT. Country-specific registration taxes are not included. This information is not legally binding.