Is the 2020 JCW Countryman the MOST powerful Mini ever built?

Is the 2020 JCW Countryman the MOST powerful Mini ever built?
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Ground Clearance: 
6.50in
Suspension Info: 
Four-Wheel Independent Suspension
Climate Control: 
yes
ABS: 
yes
Wheel size: 
18 X 8.0 In.
Width: 
71.70in
Navigation: 
yes
Engine type: 
Petrol/Gas
Rear View Camera: 
yes
Horsepower: 
301hp
at 5 200rpm
Engine Size/Displacement: 
2.00L

Also called:

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