Bringing car spotting into perspective
Front
Side
Rear
Swap
Background grid Rolls-Royce Twenty Phaeton 1922-1929 Porsche 911 Coupé 2018-2020
Spec height1 1.74 m 2 
+ 44.3 cm
1 1.297 m Spec height1
2 1.8 m Spec width2
+ 8 cm 1 1.88 m Spec width2
Now Comparing Photos show real-world appearance vs. specification. See Disclaimer.
Porsche 911 Coupé GT3 RS 2018 - 2020
Views available
Porsche
911
Coupé GT3 RS
Gen. 7.1 | 2018 - 2020
Find at a Dealer
Spotted in Switzerland 21″
Rolls-Royce Twenty 4-door Phaeton Park Ward 1922 - 1929
Views available
Rolls-Royce
Twenty
4-door Phaeton Park Ward
Gen. 1 | 1922 - 1929
Spotted in Switzerland 21″
Compare Car Insurance Rates Personalized quotes in 5 minutes or less with Insurify

Front View Car Size ComparisonPorsche 911 GT3 RS (991) Coupé GT3 RS 2018 vs. Rolls-Royce Twenty 20 H.P. Tourer 4-door Phaeton Park Ward 1922


Dimensions & Specifications | Porsche 911 GT3 RS (991) Coupé GT3 RS 2018 is 8 cm wider and 44.3 cm lower compared to Rolls-Royce Twenty 20 H.P. Tourer 4-door Phaeton Park Ward 1922

--
Size class
Mid-size
455.7 cm
+3.6
Length
452.1 cm
188 cm
+8
Width2
180 cm
197.8 cm
Width incl. mirrors
-- cm
129.7 cm
Height1
174 cm
+44.3
245.3 cm
Wheelbase
327.7 cm
+82.4
-- cm
Ground clearance3
19 cm
1505 kg
Weight4,6
1930 kg
+29%
4
Seats max.
5
+1
-- l
Cargo volume EU4
-- l
-- l
Cargo volume max. EU4,5
-- l
-- l
Cargo volume US4
-- l
-- l
Cargo volume max. US4,5
-- l
Luxury
Segment
Luxury
€ 190218
Price EU7
€ --
$ 187500
Price US7
$ --
1. Maximum height | 2. Width with folded mirrors when available | 3. Max. ground clearance | 4. Most common power unit. Possible deviation of standards. | 5. With all rear seats folded down | 6. Curb weight | 7. For illustration purpose only. Starting MSRP (Manufacturer Suggested Retail Price).
cm
inch
Quick Facts
3133756
Comparison combinations
Germany
Origin of the most car models
1908
Year of our oldest car model
Featured in
Car and Driver The New York Times Top Gear

Compare car dimensions with real cars side-by-side, true-to-scale, and from the same point of view for thousands of current and historical models. Limitations apply - please read our disclaimer.

Let us know about the cars you'd love to see on our website by contacting us on social media or dropping us an email to info[at]carsized[dot]com.

Copyright © 2026 carsized.com. All rights reserved.