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Lexus & Lunar


The Lexus RX300 and the Lunar Lexon 640 RS with a laden weight of 1525 kg is a good match.

Weight

weight ratio
towball limit
stability

Flat roads

speed
acceleration
4th gear

Mountains

speed
hill starts
driving

75%

1525 kg 2030 kg
85 kg


Score 7.3


21%

The stability score is calculated with a noseweight of 85 kg. That is 5 kg more than the towball limit of the car!

Good

  • Speed on motorways
  • Hill starts
  • Usability highest gear
  • Higher revs uphill not necessary

Bad

  • Towball limit is a bit too low (5 kg)
  • Best pulling power at high revs


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Number of useful calculations

Verdict

The Lexus RX300 and the Lunar Lexon 640 RS of a laden weight of 1525 kg is an excellent combination for all journeys on all kinds of roads.

Weight

The chance of snaking is relatively small at normal speed, if the caravan is well loaded.

Flat roads

The performances of the engine of this outfit are in general very good. Under all conditions on motorways it is possible to drive with 60 mph in the 4th gear. In that case the engine runs approximately 2400 rpm. In a headwind or for example on a crossover there is no need to downshift immediately.

Mountains

On most motorways inclines (1:20) driving is easily possible in the 3th gear with 50 mph and even full throttle with 69 mph. Hill starts are possible on steep slopes, theoretical up to 26%, if the wheels have sufficient traction. Because the car does not have enough power at low revs, we recommend a gradient of more than 19% not to drive.

Attention: This car can easily drive much faster with the caravan than is safe. So always keep an eye on your speed!


Results

The main details in a list. Ideal for comparing different combinations with one another, for example your present with a new one.

Weight
Towing limit
2000 kg
Weight ratio
75%
(laden Caravan / laden Car)
(1525 kg / 2030 kg)
Noseweight
Towball limit
80 kg
Advise
85 kg
Stability
Score at legislative - optimal noseweight
6.8 - 7.3
Infuence pay load
26%
Flat roads
Top speed
99 mph (3th gear)
At headwind
92 mph
Speed in practice
82 mph (3th gear)
Acceleration
0 - 60 mph
19.5 sec. - (max. 15.5 sec.)
30 - 60 mph
13 sec. - (max. 9.6 sec.)
50 - 60 mph
3th gear: 7 sec. (max. 3.9 sec.)
Power at 60 mph
Highest (4th) gear
often useful
Gears in practice
4th gear
3th gear
Revs at 60 mph
2437
3368
Percentage between accelerator
60% - 69%
41% - 47%
Power needed at 60 mph 1614 N
over: 1122 N
over: 2388 N
Motorway inclines 1:20
Speed (maximum)
69 mph
In the
3th gear - (2th gear)
Revs
3895
Acceleration 30 - 50 mph
10.5 sec. - (max. 9.3 sec.)
Normaly at 50 mph in the
3th gear
By revs
2807
Percentage accelerator
82%
By full throttle
Hill starts
Maximum incline
21.3% - 28.4%
Minimum speed (whereby power)
6 mph - (14 mph)
Mountain roads
Maximum slope driving
18.4%
Maximum speed on 1:8
38 mph in the 1th gear

 

Download a fact sheet in PDF


Details combination

You may customize the data to your own situation.

Car
Lexus RX300
Year
October 2000 - May 2003
Power
kW (223 bhp) at rpm
Torque
Nm at - rpm
Kerbweight
kg user payload kg
Tyres
/ R
Gearbox
automatic with 4 gears and torque converter
Towing limit
kg (towball limit kg)
Caravan
Lunar Lexon 640 RS
MIRO
kg Payload kg
MTPLM
kg
Height:
m. (8'7")
Overall width:
m. (7'2")
Overall body lenght:
m. (19'1")
Shipping length:
m. (23'2")
Actual gross train weight
3555 kg
Stated vehicle gross train weight
kg

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Reviews

The Lexus towing a Lunar Lexon 640 RS (1525) kg reviewed by Alan:

I've been driving this combo since mid 2018, on eight trips thus far. Even fully laden the RX manages the Lunar very well indeed. Plenty of grunt for the hills and the occasional overtake, 18-19 mpg at 55 mph (does drop precipitously at anything much faster). To accommodate the 75kg noseweight we put the gas bottles in the back of the car and load the 'van carefully - it's quite stable under most conditions up to around 60-65 mph and no problem at all under even sharp braking.

The Lexus towing a Sterling Eccles SE Ruby (1600) kg reviewed by Mark:

This car towed the Ruby with no problems used the cruise control it didnt need to ghange down going up hill like our previous Mitsubishi Challenger did aslo did the same milage about 20MPG and as petrol is cheaper this is a saving for me.Also very comfortable whilst towing.

The Lexus towing a TEC Travel King 510 TE (1300) kg reviewed by Pete Morris:

If you can live with 20mpg whilst towing (our previous Mitsubishi diesel only returned the same), then forget diesel! 500 miles a day towing is like driving round the block solo in any other car. Comfort, power + cruise control - the best kept secret in caravanning - buy one!